数学题

主页

1.
4 + 4 = 8 39 26 35

2.
1 - 13 = 34 27 33 -12

3.
7 + 14 = 5 21 31 17

4.
7 + 11 = 5 18 34 22

5.
15 - 4 = 6 11 32 22

6.
18 + 20 = 38 37 14 30

7.
4 - 13 = -9 24 2 3

8.
15 - 9 = 31 6 38 4

9.
6 - 3 = 39 4 30 3

10.
7 + 10 = 37 17 26 35