3 + = 12 + 5=14 5+ =12
7+ =11 5+ =11 6+ =13
=(个)
+ = (只)
9+6= 2+9= 8+7= 6-2+8= 7+4-1=
10-6= 5+7= 15-4= 8-4+9= 7+9-1=
18-10= 9+9= 10+8-3= 15-10+6= 16-10+7=
7+614 7+816 2+812
6+713 2+916 7+912
4+310 8+10-715 9-5+420
6+712 16-38
5+917 8+36+5
10-6= 8+5= 13-2= 6+2=
5+9= 4+7= 9+9= 10-1=
3+6= 9+8= 8+6= 6+7=
7-4= 16-6= 4-0= 9+4=
10-2= 15-10= 7+9= 8-1=
4+712 1119-9 7+88+7
□○□=□
①14+5= ②9+4= ③7+6= ④7+8=
⑤12-2= ⑥6+9= ⑦3+7= ⑧9+10=