17+116 124+9 9+620-3
15-717-9 17+017-0 20-218-2
12 | -9= | |
14 | ||
16 | ||
18 |
=
16-7=
15-6=
13-4=
12-9=
16-9=
9+=16
☆ |
18 |
13 |
12 |
18 |
36 |
|
|
□ |
6 |
5 |
4 |
9 |
20 |
4 |
3 |
☆-□ |
|
|
|
|
|
9 |
12 |
还剩多少条鱼?
154+7 10-74 6+915
18-911 8+615 117+9
16-8=□
18-9=□