题型:填空题 题类:常考题 难易度:容易
一年级 20以内的退位减法747
18-10= | 14-4= |
15+4= | 19-9= |
18-5= | 10+4= |
12+7= | 19-8= |
12-9= | 14-8= | 12-4= | 13-6= | 7+8-6= |
16-7= | 11+5= | 9+5= | 12-7= | 8+3-4= |
16+3= | 12-6= | 18-8= | 7+7= | 13-9+3= |
13-7= | 5+8= | 14+5= | 15-9= | 12+6-9= |
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