试题详情
口算我最快。
4-2= | 2+2= | 4+1= | 2+3= | 4-4= |
4-1= | 0+5= | 5-2= | 1+2= | 3-2= |
3-0= | 1+3= | 4-3= | 5-4= | 3+0= |
5-0= | 2+3= | 4-2= | 5-5= | 3-1= |
3-2= | 4-2= | 4-1= | 5-3= | 2-2= |
知识点
参考答案
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