☆ |
18 |
13 |
12 |
18 |
36 |
|
|
□ |
6 |
5 |
4 |
9 |
20 |
4 |
3 |
☆-□ |
|
|
|
|
|
9 |
12 |
81-50= 68+32= 82-7= 63÷7=
280-80= 760-160 = 540+460= 18÷3=
40+9 68-8 3+70 59-50 8+20
<<<<
12-4 = 17-9= 18-8 = 20+60 = 50+5 =
40+22 = 60+38 = 70-50 = 89-6= 91-40 =
4+613-3 6-66-0 9+614 18-107