3 乘法 30 等于多少?
3 × 30 = 90
3乘法30 等于 90
竖式演算
验算
- 用除法验算:90 ÷ 30 = 3
- 用除法验算:90 ÷ 3 = 30
相关题目
3 × 29 = 87
3 × 31 = 93
3 × 28 = 84
3 × 32 = 96
3 × 33 = 99
3 × 27 = 81
3 × 34 = 102
3 × 26 = 78
2 × 30 = 60
4 × 30 = 120
1 × 30 = 30
5 × 30 = 150
6 × 30 = 180
7 × 30 = 210
8 × 30 = 240
9 × 30 = 270
1 × 90 = 90
2 × 45 = 90
5 × 18 = 90
6 × 15 = 90
9 × 10 = 90
10 × 9 = 90
91 × 17 = 1547
92 × 35 = 3220
64 × 1 = 64
85 × 77 = 6545
84 × 6 = 504
65 × 82 = 5330
24 + 66 = 90
94 - 4 = 90