Ответ:

2 + 3 = 5; 3 + 3 = 6; 4 + 3 = 7.

5 + 3 = 8; 6 + 3 = 9; 7 + 3 = 10.

5 − 3 = 2; 6 − 3 = 3; 7 − 3 = 4.

8 − 3 = 5; 9 − 3 = 6; 10 − 3 = 7.