42 加法 89 等于多少？
42 + 89 = 131
42加法89 等于 131
竖式演算
验算
- 用减法验算：131 − 89 = 42
- 用减法验算：131 − 42 = 89
相关题目
42 + 88 = 130
42 + 90 = 132
42 + 87 = 129
42 + 91 = 133
42 + 92 = 134
42 + 86 = 128
42 + 93 = 135
42 + 85 = 127
41 + 89 = 130
43 + 89 = 132
40 + 89 = 129
44 + 89 = 133
39 + 89 = 128
45 + 89 = 134
38 + 89 = 127
46 + 89 = 135
31 + 100 = 131
32 + 99 = 131
33 + 98 = 131
34 + 97 = 131
35 + 96 = 131
36 + 95 = 131
59 + 52 = 111
86 + 24 = 110
75 + 96 = 171
22 + 99 = 121
87 + 46 = 133
84 + 37 = 121
41 + 10 = 51
88 + 43 = 131