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
98 + 95 = 193
99 + 6 = 105
74 + 58 = 132
54 + 56 = 110
95 + 38 = 133
34 + 97 = 131
5 × 20 = 100
20 × 5 = 100