89 减法 79 等于多少？
89 - 79 = 10
89减法79 等于 10
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验算
- 用加法验算：10 + 79 = 89
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89 - 78 = 11
89 - 80 = 9
89 - 77 = 12
89 - 81 = 8
89 - 76 = 13
89 - 82 = 7
89 - 83 = 6
89 - 75 = 14
88 - 79 = 9
90 - 79 = 11
91 - 79 = 12
87 - 79 = 8
92 - 79 = 13
86 - 79 = 7
93 - 79 = 14
85 - 79 = 6
11 - 1 = 10
12 - 2 = 10
13 - 3 = 10
14 - 4 = 10
15 - 5 = 10
16 - 6 = 10
75 - 73 = 2
45 - 12 = 33
97 - 20 = 77
76 - 35 = 41
25 - 12 = 13
96 - 14 = 82
10 × 1 = 10
5 × 2 = 10