13 加法 78 等于多少？
13 + 78 = 91
13加法78 等于 91
竖式演算
验算
- 用减法验算：91 − 78 = 13
- 用减法验算：91 − 13 = 78
相关题目
13 + 77 = 90
13 + 79 = 92
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13 + 75 = 88
13 + 81 = 94
13 + 74 = 87
13 + 82 = 95
12 + 78 = 90
14 + 78 = 92
11 + 78 = 89
15 + 78 = 93
10 + 78 = 88
16 + 78 = 94
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1 + 90 = 91
2 + 89 = 91
3 + 88 = 91
4 + 87 = 91
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83 + 63 = 146
33 + 71 = 104
21 + 19 = 40
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97 - 6 = 91