5 加法 2 等于多少?
5 + 2 = 7
5加法2 等于 7
竖式演算
验算
- 用减法验算:7 − 2 = 5
- 用减法验算:7 − 5 = 2
相关题目
5 + 1 = 6
5 + 3 = 8
5 + 4 = 9
5 + 5 = 10
5 + 6 = 11
5 + 7 = 12
5 + 8 = 13
5 + 9 = 14
4 + 2 = 6
6 + 2 = 8
3 + 2 = 5
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2 + 2 = 4
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2 + 5 = 7
3 + 4 = 7
4 + 3 = 7
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100 + 53 = 153
14 + 50 = 64
20 + 51 = 71
4 + 35 = 39
4 + 94 = 98
85 + 3 = 88
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12 - 5 = 7
91 - 84 = 7