Дидактический материал"Сложение и вычитание"

Краснодарский край Калининский район

Муниципальное бюджетное общеобразовательное  учреждение –

средняя общеобразовательная школа № 13

станицы Гривенской

Дидактический материал

                              ЧИСЛА ОТ 1 ДО 100

Сложение и вычитание

                               Городецкая Галина Александровна

                                   учитель начальных классов                                                  

                                                          МБОУ - СОШ № 13

ст. Гривенская

Аннотация

Дидактический материал по теме «Числа от 1 до 100. Сложение и вычитание» вида: 36 + 2, 36 + 20, 36 - 2, 36 - 20, 26 + 4, 30 – 4, 60 – 24, 26 + 7,

35 - 7 создан для учащихся 2 класса.

Система упражнений позволяет развивать  у  учащихся  вычислительные навыки, основу  которых  составляет  осознанное  и  прочное  усвоение  приёмов  устных  и  письменных  вычислений. Результативность – устойчивые  вычислительные  навыки    учащихся  начальных классов, развитие познавательного интереса и эмоциональной сферы ребёнка.

Данный ресурс можно использовать при групповой и индивидуальной работе не только для проверки знаний учащихся, но и как тренажёр на уроках математики  и на занятиях в кружке «Занимательная математика».

Сложение  вида  36  + 2 , 36  + 20 36 + 2                                            36 + 20                                  / \                                                  / \     30    6                                            30    6 30 + ( 6 + 2 ) = 38                   ( 30 + 20 ) + 6 = 56 Единицы      складывают       с      единицами. Десятки      складывают     с      десятками. 31 + 60 = ________________________________________________________        75 + 3 = __________________________________________________________                46 + 20 = _________________________________________________________ 34 + 40 = _________________________________________________________                   83 + 4 = __________________________________________________________                                25 + 30 =_________________________________________________________ 56 + 30 = _________________________________________________________               62 + 7 =__________________________________________________________                   81 + 8 =__________________________________________________________ 37 + 20 =_________________________________________________________ 82 + 4 = __________________________________________________________                    67 + 20 =_________________________________________________________ 36 + 30 = _________________________________________________________                 13 + 50= _________________________________________________________                     32 + 6 = __________________________________________________________                                                                         Сложение  вида  36  + 2 , 36  + 20                                    36 + 2                                            36 + 20                                 / \                                                  / \      30    6                                             30    6 30 + ( 6 + 2 ) = 38                   ( 30 + 20 ) + 6 = 56 Единицы      складывают       с      единицами. Десятки      складывают     с      десятками. 24 + 5 =__________________________________________________________ 76  + 2 = _________________________________________________________ 92 + 2 = _________________________________________________________  33 + 60 = _________________________________________________________ 81 + 8 =  _________________________________________________________ 26  + 50  =________________________________________________________ 53 + 4 =__________________________________________________________ 13 + 60 = _________________________________________________________ 85 + 3 = _________________________________________________________ 27 + 30 = _________________________________________________________ 43 + 40 =_________________________________________________________ 23 + 70 = _________________________________________________________ 25 + 3 = _________________________________________________________ 37 + 40 = _________________________________________________________            83 + 4 = _________________________________________________________                                                   Сложение  вида  36  + 2 , 36  + 20 36 + 2                                            36 + 20                                    / \                                                  / \         30    6                                           30    6 30 + ( 6 + 2 ) = 38                   ( 30 + 20 ) + 6 = 56 Единицы      складывают       с      единицами. Десятки      складывают     с      десятками. 22 + 60 = ________________________________________________________ 70 + 24 =________________________________________________________ 62 + 20 =_________________________________________________________ 33 + 6 = __________________________________________________________ 30 + 25 = ________________________________________________________ 20 + 71 = _________________________________________________________ 53 + 40 = _________________________________________________________ 15 + 80 = _________________________________________________________ 62 + 10 = _________________________________________________________                 30 + 58 =_________________________________________________________             44 + 40 = _________________________________________________________ 23 + 60 = _________________________________________________________ 22 + 50 = _________________________________________________________                 30 + 38 =_________________________________________________________             25 + 60 = _________________________________________________________                                           Сложение  вида  26 + 4                      26 + 4 =                                              95 + 5 =                      /  \                                                       /  \                   20   6                                                  90    5                                                       20 + ( 6 + 4 ) = 30                       90 + ( 5 + 5) = 100    12 + 8 =________________________________________________                               / \                                     93 + 7=_______________________________________________   / \                                                                             36 + 4 = ______________________________________________                           / \  55 + 5 = ______________________________________________                           / \   49 + 1 =  _______________________________________________                             / \   68 + 2 = _______________________________________________                           / \                                                                          91 + 9 =  _______________________________________________                          / \   27 + 3 =________________________________________________    / \                                        34 + 6 =_______________________________________________    / \ Вычитание  вида  30 – 4                                                          30 – 4 =                                                           / \                                                       20   10                                                 20 + ( 10 – 4 ) = 26   30              40             50                60            70           80              90            100    / \              / \               / \               / \            / \             / \               / \             / \                     20   10       …   10        …  10     …  10      …  10       …  10         … 10       ...  10    20 - 8 =________________________________________________                               / \                                     90 - 7=_______________________________________________   / \                                                                             30 - 5 = ______________________________________________                           / \  50 - 5 = ______________________________________________                           / \   40 - 4  =  _______________________________________________                              / \   60 - 2 = _______________________________________________                           / \                                                                          80 - 3 =  _______________________________________________                          / \   7 0 - 9 =________________________________________________    / \                                                                 Сложение  вида   60 - 24                                          60 - 24                                            / \                                                                                20  4                                     ( 60 – 20) - 4 =36   70 - 28 =_______________________________________________                                   / \                                     90 -  39=_______________________________________________            / \                                                                            40 - 28  = ______________________________________________                                 / \  80 - 67 = ______________________________________________                                  / \   40 - 36 =  ______________________________________________                                 / \   30 - 23 = _______________________________________________                                  / \                                                                          50 - 21 =  ______________________________________________                               / \   80 - 76 =_______________________________________________          / \                                        60 - 16 =_______________________________________________          / \                                           Сложение  вида  26 + 7 26 + 7=       /  \      4   3 (26 +  4) + 3  = 33                            38 + 5                                                 64 + 9 38 + 2 + … =                                      64 + 6 + …    64 + 9 =________________________________________________                                      / \                                     83 + 8=_______________________________________________          / \                                                                             36 + 7 = ______________________________________________                                  / \  85 + 6 = ______________________________________________                                  / \   63 + 9 =  _______________________________________________                                    / \   86 + 6 = _______________________________________________                                  / \                                                                          56 + 8 =  _______________________________________________                                 / \   37 + 5 =________________________________________________           / \                                        36 + 9 =_______________________________________________           / \ Вычитание  вида  35 – 7 35 – 7         / \          5    2                                                         ( 35 – 5 ) – 2 = 28                          42 – 6                                               53 –8 42 – 2 - …=                                       53 – … - … =    44 - 6 =________________________________________________                                     / \                                     73 - 9=_______________________________________________          / \                                                                            46 - 8 = ______________________________________________                                  / \   87 -  8 = ______________________________________________                                  / \   36 - 7 =  _______________________________________________                                    / \   65 - 9 = _______________________________________________                                  / \                                                                           52 - 6 =  _______________________________________________                                 / \    66 - 8 =________________________________________________           / \                                         96 - 7 =_______________________________________________           / \ 1. Вычисли  с  устным  объяснением. 17 + 2 =                         20 + 15 =                       10 + 88 =                          / \                                           / \                                    / \ 60 + 18 =                       70 + 19 =                        22 + 7 =                             / \                                            / \                            / \ 56 + 3 =                         61 + 4 =                          91 + 7 =                            / \                                    / \                                    / \          70 + 24 =                       50 + 34 =                        35 + 60 =                                     / \                                 / \                             / \        2. «Разбей»  числа  на  десятки  и  единицы. Реши. 31 + 7=                      76 + 3 =                 34 + 4 =                    80 + 14 =                   30 + 12 =               30 + 62 =                               62 + 10 =                   22 + 60 =               33 + 6 =    82 + 4 =                     30 + 25 =               20 + 71 =                                73 + 5 =                     15 + 80 =               82 + 10 =   3. Реши  самостоятельно,  рассуждая.  24 + 3 =             41 + 50 =             23 + 60 =                   50 + 14 =           20 + 69 =          56 + 40 =             57 + 30 =                    41 + 20 =          1.     Вычисли  с устным  объяснением. 50 – 6=                            30 – 5 =                              100 – 4 =                        / \                                      / \                                          / \ 70 – 4 =                         40 – 5 =                               100 – 9 =                        / \                                   / \                                           / \     80 – 3 =                          20 – 4 =                                30 – 5 =                          / \                                    / \                                           / \ 90 – 4 =                          50 – 6 =                                 60 – 3 =                         / \                                    / \                                           / \ 2. «Разбей»  числа  на  круглые  десятки  по  образцу.  Реши.           70 – 8 =                80 – 4 =                  90 – 3 =                          20 – 7 =                30 – 6 =                  40 – 8 =                           70 – 9 =                80 – 1=                   90 – 6 =                          40 – 7=                 40 – 9 =                  30 – 4 =                          70 – 7 =                80 – 8 =                  90 – 9 =        3.  Реши  самостоятельно,  рассуждая.    20 – 1 =           30 – 2 =             40 – 3 =           50 –4 =    80 – 7 =           90 – 8 =             100 – 9 =         20 – 9 =

Вычитание  вида  36 – 2,  36 – 20                                     36 –2                                             36 – 20                                      / \                                                  / \                                  30   6                                            30    6                            30 + ( 6 – 2 ) = 34                   ( 30 – 20 ) + 6 = 16 Единицы     вычитают     из     единиц. Десятки     вычитают   из   десятков. 37 – 5 = __________________________________________________________ 75 - 30 = __________________________________________________________ 46 - 20 = _________________________________________________________ 39 - 4 = ___________________________________________________________ 88 - 50 = __________________________________________________________ 27 - 3 =___________________________________________________________ 56 - 3 =___________________________________________________________ 68 -  50 = _________________________________________________________    88 - 70 = _________________________________________________________ 39 -  2 =__________________________________________________________ 86 -  50 = _________________________________________________________ 97 -  20 =________________________________________________________ 39 - 6 =___________________________________________________________ 27 - 5 = _________________________________________________________ 36 - 4 =   ________________________________________________________                                    Вычитание  вида  36 – 2,  36 – 20                                 36 –2                                      36 – 20                                  / \                                           / \                               30   6                                      30    6                            30 + ( 6 – 2 ) = 34                   ( 30 – 20 ) + 6 = 16 Единицы     вычитают     из     единиц. Десятки     вычитают   из   десятков. 27 – 6 = __________________________________________________________ 55 - 20 = __________________________________________________________ 46 - 30 = _________________________________________________________ 59 - 5 = ___________________________________________________________ 78 - 40 = __________________________________________________________ 57 - 30 =__________________________________________________________ 26 - 3 =___________________________________________________________ 48 -  30 = _________________________________________________________    68 - 30 = _________________________________________________________ 79 -  20 =__________________________________________________________ 86 -  60 = _________________________________________________________ 47 -  20 =________________________________________________________ 99 - 6 =___________________________________________________________ 67 - 50 = _________________________________________________________ 84 - 70 =   ________________________________________________________                                       Вычитание  вида  36 – 2,  36 – 20                                 36 –2                                      36 – 20                                 / \                                            / \                              30   6                                      30    6                            30 + ( 6 – 2 ) = 34                   ( 30 – 20 ) + 6 = 16 Единицы     вычитают     из     единиц. Десятки     вычитают   из   десятков. 77 – 6 = __________________________________________________________ 45 - 30 = __________________________________________________________ 26 - 20 = _________________________________________________________ 38 - 20 = __________________________________________________________ 68 - 40 = __________________________________________________________ 37 - 4 =___________________________________________________________ 76 - 60 =__________________________________________________________ 98 -  30 = _________________________________________________________    81 - 30 = _________________________________________________________ 99 -  20 =__________________________________________________________ 56 -  30 = _________________________________________________________ 77 -  40 =________________________________________________________ 97 - 5 =___________________________________________________________ 59 - 7 = _________________________________________________________ 29 - 4 =   ________________________________________________________                                   Сложение  вида  26 + 4                      26 + 4 =                                              95 + 5 =                      /  \                                                       /  \                   20   6                                                  90    5                                                       20 + ( 6 + 4 ) = 30                       90 + ( 5 + 5) = 100 81 + 9 =________________________________________________                               / \                                    43 + 7=_______________________________________________   / \                                                                            27 + 3 = ______________________________________________                           / \  65 + 5 = ______________________________________________                           / \   67 + 3 =  _______________________________________________                             / \   98 + 2 = _______________________________________________                           / \                                                                          96 + 4 =  _______________________________________________                          / \   22 + 8 =________________________________________________    / \                                        34 + 6 =_______________________________________________    / \ Вычитание  вида  30 – 4                                                          30 – 4 =                                                           / \                                                       20   10                                                 20 + ( 10 – 4 ) = 26   30              40             50                60            70           80              90            100    / \              / \               / \               / \            / \             / \               / \             / \                     20   10       …   10        …  10     …  10      …  10       …  10         … 10       ...  10    40 - 6 =________________________________________________                               / \                                     20 - 4=_______________________________________________   / \                                                                             60 - 9 = ______________________________________________                           / \  90 - 3 = ______________________________________________                           / \   30 - 8 =  _______________________________________________                              / \   80 - 5 = _______________________________________________                           / \                                                                          50 - 7 =  _______________________________________________                          / \   7 0 - 2 =________________________________________________    / \                                                               Сложение  вида   60 - 24                                          60 - 24                                            / \                                                                                20  4                                     ( 60 – 20) - 4 =36 90 - 14 =_______________________________________________                                   / \                                     80 -  44=_______________________________________________            / \                                                                            40 - 28  = ______________________________________________                                 / \  70 - 29 = ______________________________________________                                  / \   60 - 41 =  ______________________________________________                                 / \   80 - 39 = _______________________________________________                                  / \                                                                           80 – 77  =  ______________________________________________                               / \   40 - 36 =_______________________________________________          / \                                        50 - 27 =_______________________________________________          / \                                           Сложение  вида  26 + 7 26 + 7=       /  \      4   3 (26 +  4) + 3  = 33                            38 + 5                                                 64 + 9 38 + 2 + … =                                      64 + 6 + …    87 + 8 =________________________________________________                                      / \                                     38 + 5=_______________________________________________          / \                                                                            47 + 6 = ______________________________________________                                  / \   58+ 7 = ______________________________________________                                  / \   62 + 9 =  _______________________________________________                                    / \    29 + 4 = _______________________________________________                                   / \                                                                          76 + 8 =  _______________________________________________                                 / \   65 + 9 =________________________________________________           / \                                        84 + 9 =_______________________________________________           / \   Вычитание  вида  35 – 7 35 – 7         / \          5    2                                                         ( 35 – 5 ) – 2 = 28                      42 – 6                                               53 –8                           42 – 2 - …=                                      53 – … - … =   64 - 9 =________________________________________________                                     / \                                      37 - 8=_______________________________________________          / \                                                                            24 - 6 = ______________________________________________                                  / \   75 -  9 = ______________________________________________                                  / \    62 - 5 =  _______________________________________________                                     / \     51 - 9 = _______________________________________________                                  / \                                                                            23 - 7 =  _______________________________________________                                 / \    96 - 8 =________________________________________________           / \                                          54 - 7 =_______________________________________________           / \ 1.  Вычисли    с  устным  объяснением .      86 – 5 =                           86 – 50 =                             77- 6 =                                  / \                                               / \                                                     / \                       78 – 6 =                          78 – 60 =                             44 – 3 =                                 / \                                             / \                                                       / \               56 – 4 =                          56 –40 =                              89 – 7 =                               / \                                   / \                                          / \    65 – 4 =                          65 –40 =                              96 – 5 =                               / \                                   / \                                         / \        2. «Разбей»  числа  на  десятки  и  единицы.  Реши. 47 – 2 =                 54 – 3 =                  78 – 6 =                     64 – 20 =               54 – 30 =                 78 – 60 =                  34 – 3 =                 63 –2 =                     76 – 5 =                   16 – 5 =                 27 – 10 =                  56 – 30 =                  37 – 7 =                 36 – 3 =                     79 – 6 =                   3. Реши  самостоятельно,  рассуждая.       88 – 2 =             94 – 2 =             54 – 3 =              56 – 5 =            67 – 30 =           86 – 70 =           78 – 50 =             39 – 20 = 1.  Вычисли  с  устным  объяснением. 70 – 28 =                          90 – 39                      40 – 28 =                                   / \                                     / \                                / \ 30 – 23 =                          40 – 36 =                   50 – 21 =                                   / \                                      / \                               / \ 40 –14 =                           100 – 44 =                  70 – 29 =                                   / \                                         / \                             / \ 50 – 36 =                          70 –23 =                     80 – 77 =                                    / \                                    / \                                  / \ 2.     «Разбей»  числа  на  десятки  и  единицы.  Реши. 40 –15 =                   70 – 18 =                100 – 18 =             50 – 46 =                  80 – 73 =                80 – 19 =               60 –57 =                   40 – 33 =                40 – 36 =  80 – 57 =                  30 –18 =                 30 – 12 =               50 - 47 =                  30 – 29 =                 50 – 38 =                 3. Реши  самостоятельно,  рассуждая. 50 – 32 =            30 – 21 =          50 – 43 =          60 – 56 = 30 – 26 =            60 – 44 =          80 – 75 =          90 – 56  =