21 加法 79 等于多少？
21 + 79 = 100
21加法79 等于 100
竖式演算
验算
- 用减法验算：100 − 79 = 21
- 用减法验算：100 − 21 = 79
相关题目
21 + 78 = 99
21 + 80 = 101
21 + 77 = 98
21 + 81 = 102
21 + 76 = 97
21 + 82 = 103
21 + 83 = 104
21 + 75 = 96
20 + 79 = 99
22 + 79 = 101
19 + 79 = 98
23 + 79 = 102
24 + 79 = 103
18 + 79 = 97
25 + 79 = 104
17 + 79 = 96
1 + 99 = 100
2 + 98 = 100
3 + 97 = 100
4 + 96 = 100
5 + 95 = 100
6 + 94 = 100
95 + 99 = 194
65 + 35 = 100
65 + 86 = 151
69 + 82 = 151
79 + 65 = 144
64 + 99 = 163
100 × 1 = 100
10 × 10 = 100