42 加法 9 等于多少？
42 + 9 = 51
42加法9 等于 51
竖式演算
验算
- 用减法验算：51 − 9 = 42
- 用减法验算：51 − 42 = 9
相关题目
42 + 8 = 50
42 + 10 = 52
42 + 11 = 53
42 + 7 = 49
42 + 12 = 54
42 + 6 = 48
42 + 13 = 55
42 + 5 = 47
41 + 9 = 50
43 + 9 = 52
40 + 9 = 49
44 + 9 = 53
39 + 9 = 48
45 + 9 = 54
38 + 9 = 47
46 + 9 = 55
1 + 50 = 51
2 + 49 = 51
3 + 48 = 51
4 + 47 = 51
5 + 46 = 51
6 + 45 = 51
62 + 54 = 116
91 + 10 = 101
76 + 18 = 94
69 + 18 = 87
70 + 30 = 100
17 + 7 = 24
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65 - 14 = 51