42 加法 80 等于多少？
42 + 80 = 122
42加法80 等于 122
竖式演算
验算
- 用减法验算：122 − 80 = 42
- 用减法验算：122 − 42 = 80
相关题目
42 + 79 = 121
42 + 81 = 123
42 + 78 = 120
42 + 82 = 124
42 + 83 = 125
42 + 77 = 119
42 + 84 = 126
42 + 76 = 118
41 + 80 = 121
43 + 80 = 123
40 + 80 = 120
44 + 80 = 124
39 + 80 = 119
45 + 80 = 125
38 + 80 = 118
46 + 80 = 126
22 + 100 = 122
23 + 99 = 122
24 + 98 = 122
25 + 97 = 122
26 + 96 = 122
27 + 95 = 122
8 + 85 = 93
50 + 77 = 127
20 + 86 = 106
31 + 39 = 70
48 + 15 = 63
27 + 47 = 74
2 × 61 = 122
61 × 2 = 122