60 加法 30 等于多少？
60 + 30 = 90
60加法30 等于 90
竖式演算
验算
- 用减法验算：90 − 30 = 60
- 用减法验算：90 − 60 = 30
相关题目
60 + 29 = 89
60 + 31 = 91
60 + 28 = 88
60 + 32 = 92
60 + 33 = 93
60 + 27 = 87
60 + 34 = 94
60 + 26 = 86
59 + 30 = 89
61 + 30 = 91
58 + 30 = 88
62 + 30 = 92
57 + 30 = 87
63 + 30 = 93
56 + 30 = 86
64 + 30 = 94
1 + 89 = 90
2 + 88 = 90
3 + 87 = 90
4 + 86 = 90
5 + 85 = 90
6 + 84 = 90
20 + 8 = 28
27 + 40 = 67
66 + 10 = 76
56 + 33 = 89
15 + 50 = 65
31 + 7 = 38
1 × 90 = 90
94 - 4 = 90