18 加法 71 等于多少？
18 + 71 = 89
18加法71 等于 89
竖式演算
验算
- 用减法验算：89 − 71 = 18
- 用减法验算：89 − 18 = 71
相关题目
18 + 70 = 88
18 + 72 = 90
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18 + 73 = 91
18 + 74 = 92
18 + 68 = 86
18 + 75 = 93
18 + 67 = 85
17 + 71 = 88
19 + 71 = 90
20 + 71 = 91
16 + 71 = 87
21 + 71 = 92
15 + 71 = 86
22 + 71 = 93
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1 + 88 = 89
2 + 87 = 89
3 + 86 = 89
4 + 85 = 89
5 + 84 = 89
6 + 83 = 89
100 + 89 = 189
49 + 30 = 79
53 + 14 = 67
30 + 38 = 68
80 + 12 = 92
50 + 36 = 86
92 - 3 = 89
98 - 9 = 89