99 减法 78 等于多少？
99 - 78 = 21
99减法78 等于 21
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验算
- 用加法验算：21 + 78 = 99
相关题目
99 - 77 = 22
99 - 79 = 20
99 - 76 = 23
99 - 80 = 19
99 - 75 = 24
99 - 81 = 18
99 - 74 = 25
99 - 82 = 17
98 - 78 = 20
100 - 78 = 22
97 - 78 = 19
96 - 78 = 18
95 - 78 = 17
94 - 78 = 16
93 - 78 = 15
92 - 78 = 14
22 - 1 = 21
23 - 2 = 21
24 - 3 = 21
25 - 4 = 21
26 - 5 = 21
27 - 6 = 21
30 - 30 = 0
67 - 40 = 27
9 - 4 = 5
64 - 31 = 33
79 - 10 = 69
85 - 23 = 62
21 × 1 = 21
11 + 10 = 21