70 加法 30 等于多少？
70 + 30 = 100
70加法30 等于 100
竖式演算
验算
- 用减法验算：100 − 30 = 70
- 用减法验算：100 − 70 = 30
相关题目
70 + 29 = 99
70 + 31 = 101
70 + 28 = 98
70 + 32 = 102
70 + 33 = 103
70 + 27 = 97
70 + 34 = 104
70 + 26 = 96
69 + 30 = 99
71 + 30 = 101
68 + 30 = 98
72 + 30 = 102
67 + 30 = 97
73 + 30 = 103
74 + 30 = 104
66 + 30 = 96
1 + 99 = 100
2 + 98 = 100
3 + 97 = 100
4 + 96 = 100
5 + 95 = 100
6 + 94 = 100
70 + 47 = 117
92 + 16 = 108
97 + 10 = 107
90 + 99 = 189
63 + 83 = 146
42 + 8 = 50
1 × 100 = 100
20 × 5 = 100