100 加法 31 等于多少？
100 + 31 = 131
100加法31 等于 131
竖式演算
验算
- 用减法验算：131 − 31 = 100
- 用减法验算：131 − 100 = 31
相关题目
100 + 30 = 130
100 + 32 = 132
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100 + 33 = 133
100 + 28 = 128
100 + 34 = 134
100 + 35 = 135
100 + 27 = 127
99 + 31 = 130
98 + 31 = 129
97 + 31 = 128
96 + 31 = 127
95 + 31 = 126
94 + 31 = 125
93 + 31 = 124
92 + 31 = 123
31 + 100 = 131
32 + 99 = 131
33 + 98 = 131
34 + 97 = 131
35 + 96 = 131
36 + 95 = 131
37 + 61 = 98
26 + 40 = 66
21 + 20 = 41
54 + 33 = 87
71 + 2 = 73
99 + 9 = 108
3 + 88 = 91
36 + 67 = 103