48 加法 42 等于多少？
48 + 42 = 90
48加法42 等于 90
竖式演算
验算
- 用减法验算：90 − 42 = 48
- 用减法验算：90 − 48 = 42
相关题目
48 + 41 = 89
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48 + 45 = 93
48 + 38 = 86
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47 + 42 = 89
49 + 42 = 91
46 + 42 = 88
50 + 42 = 92
51 + 42 = 93
45 + 42 = 87
52 + 42 = 94
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2 + 88 = 90
3 + 87 = 90
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5 + 85 = 90
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49 + 1 = 50
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