10 加法 3 等于多少？
10 + 3 = 13
10加法3 等于 13
竖式演算
验算
- 用减法验算：13 − 3 = 10
- 用减法验算：13 − 10 = 3
相关题目
10 + 2 = 12
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10 + 6 = 16
10 + 7 = 17
10 + 8 = 18
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