Сложение и вычитание вв пределах 10-и

Front

2-1=

Back

1

Front

3+4

Back

7

Front

6-4

Back

2

Front

7+3

Back

10

Front

9-4

Back

5

Front

3+5

Back

8

Front

4-0=

Back

4

Front

7+2=

Back

9

Front

9-3

Back

6

Front

0+3=

Back

3