9 加法 77 等于多少？
9 + 77 = 86
9加法77 等于 86
竖式演算
验算
- 用减法验算：86 − 77 = 9
- 用减法验算：86 − 9 = 77
相关题目
9 + 76 = 85
9 + 78 = 87
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9 + 79 = 88
9 + 74 = 83
9 + 80 = 89
9 + 73 = 82
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8 + 77 = 85
10 + 77 = 87
11 + 77 = 88
7 + 77 = 84
12 + 77 = 89
6 + 77 = 83
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2 + 84 = 86
3 + 83 = 86
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5 + 81 = 86
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17 + 39 = 56
94 + 84 = 178
14 + 27 = 41
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54 + 94 = 148
94 + 65 = 159
91 - 5 = 86
92 - 6 = 86