Предмет: Математика, автор: zalizali435

Вычисли с объяснением Как можно проверить​

Приложения:

4732833199: 12-7=5

Ответы

Автор ответа: 2008hohotun
9

Ответ:

Пошаговое объяснение:

12-7 = 7 = 2+5=12-2-5=5

22-7= 7= 2+5= 22-2-5=15

32-7= 7=2+5=32-2-5=25

52-7=7=2+5=52-2-5=45

13-5=5=3+2

23-5=5=3+2=23-3-2=18

43-5=5=5=3+2=43-3-2=38

63-5=5=3+2=63-3-2=58

12-9=9=2+7=12-2-7=3

32=9=9=2+7=32-2-7=23

52-9=9=2+7=52-2-7=43

72-9=9=2+7=63

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