100 减法 79 等于多少?
100 - 79 = 21
100减法79 等于 21
竖式演算
验算
- 用加法验算:21 + 79 = 100
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100 - 78 = 22
100 - 80 = 20
100 - 77 = 23
100 - 81 = 19
100 - 76 = 24
100 - 82 = 18
100 - 83 = 17
100 - 75 = 25
99 - 79 = 20
98 - 79 = 19
97 - 79 = 18
96 - 79 = 17
95 - 79 = 16
94 - 79 = 15
93 - 79 = 14
92 - 79 = 13
22 - 1 = 21
23 - 2 = 21
24 - 3 = 21
25 - 4 = 21
26 - 5 = 21
27 - 6 = 21
100 - 68 = 32
100 - 49 = 51
100 - 65 = 35
100 - 43 = 57
100 - 59 = 41
100 - 57 = 43
7 + 14 = 21
1 × 21 = 21