20 加法 79 等于多少？
20 + 79 = 99
20加法79 等于 99
竖式演算
验算
- 用减法验算：99 − 79 = 20
- 用减法验算：99 − 20 = 79
相关题目
20 + 78 = 98
20 + 80 = 100
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20 + 81 = 101
20 + 76 = 96
20 + 82 = 102
20 + 83 = 103
20 + 75 = 95
19 + 79 = 98
21 + 79 = 100
22 + 79 = 101
18 + 79 = 97
23 + 79 = 102
17 + 79 = 96
24 + 79 = 103
16 + 79 = 95
1 + 98 = 99
2 + 97 = 99
3 + 96 = 99
4 + 95 = 99
5 + 94 = 99
6 + 93 = 99
44 + 5 = 49
3 + 65 = 68
31 + 21 = 52
82 + 17 = 99
53 + 45 = 98
51 + 100 = 151
9 × 11 = 99
1 × 99 = 99