42 加法 78 等于多少？
42 + 78 = 120
42加法78 等于 120
竖式演算
验算
- 用减法验算：120 − 78 = 42
- 用减法验算：120 − 42 = 78
相关题目
42 + 77 = 119
42 + 79 = 121
42 + 76 = 118
42 + 80 = 122
42 + 75 = 117
42 + 81 = 123
42 + 74 = 116
42 + 82 = 124
41 + 78 = 119
43 + 78 = 121
40 + 78 = 118
44 + 78 = 122
39 + 78 = 117
45 + 78 = 123
38 + 78 = 116
46 + 78 = 124
20 + 100 = 120
21 + 99 = 120
22 + 98 = 120
23 + 97 = 120
24 + 96 = 120
25 + 95 = 120
96 + 95 = 191
33 + 77 = 110
99 + 79 = 178
75 + 69 = 144
69 + 51 = 120
44 + 77 = 121
40 × 3 = 120
3 × 40 = 120