100-20 6+7 60-3 56+34
<<<
10-8= 36-4= 6+62= 20+30+30=
51-30= 100-70= 22+50= 90-70-10=
68-25= 40-4= 58+12= 12+12-12=
5050+7 30+2020+30 100-20100-50
24+3524+38 24+67100-30 46-1746-19
图形
个数
20
43
59
95
(个)
用√选