100 加法 20 等于多少？
100 + 20 = 120
100加法20 等于 120
竖式演算
验算
- 用减法验算：120 − 20 = 100
- 用减法验算：120 − 100 = 20
相关题目
100 + 19 = 119
100 + 21 = 121
100 + 22 = 122
100 + 18 = 118
100 + 23 = 123
100 + 17 = 117
100 + 24 = 124
100 + 16 = 116
99 + 20 = 119
98 + 20 = 118
97 + 20 = 117
96 + 20 = 116
95 + 20 = 115
94 + 20 = 114
93 + 20 = 113
92 + 20 = 112
20 + 100 = 120
21 + 99 = 120
22 + 98 = 120
23 + 97 = 120
24 + 96 = 120
25 + 95 = 120
100 + 68 = 168
50 + 34 = 84
43 + 13 = 56
1 + 44 = 45
30 + 100 = 130
43 + 1 = 44
10 × 12 = 120
30 × 4 = 120