28 加法 42 等于多少？
28 + 42 = 70
28加法42 等于 70
竖式演算
验算
- 用减法验算：70 − 42 = 28
- 用减法验算：70 − 28 = 42
相关题目
28 + 41 = 69
28 + 43 = 71
28 + 40 = 68
28 + 44 = 72
28 + 39 = 67
28 + 45 = 73
28 + 38 = 66
28 + 46 = 74
29 + 42 = 71
27 + 42 = 69
30 + 42 = 72
26 + 42 = 68
31 + 42 = 73
25 + 42 = 67
32 + 42 = 74
24 + 42 = 66
1 + 69 = 70
2 + 68 = 70
3 + 67 = 70
4 + 66 = 70
5 + 65 = 70
6 + 64 = 70
49 + 7 = 56
7 + 73 = 80
56 + 26 = 82
23 + 80 = 103
43 + 63 = 106
93 + 75 = 168
7 × 10 = 70
1 × 70 = 70