89 减法 87 等于多少？
89 - 87 = 2
89减法87 等于 2
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验算
- 用加法验算：2 + 87 = 89
相关题目
89 - 86 = 3
89 - 88 = 1
89 - 85 = 4
89 - 89 = 0
89 - 84 = 5
89 - 83 = 6
89 - 82 = 7
89 - 81 = 8
88 - 87 = 1
90 - 87 = 3
87 - 87 = 0
91 - 87 = 4
92 - 87 = 5
93 - 87 = 6
94 - 87 = 7
95 - 87 = 8
3 - 1 = 2
4 - 2 = 2
5 - 3 = 2
6 - 4 = 2
7 - 5 = 2
8 - 6 = 2
65 - 20 = 45
99 - 45 = 54
46 - 20 = 26
94 - 1 = 93
69 - 41 = 28
76 - 20 = 56
2 × 1 = 2
1 × 2 = 2