30 减法 12 等于多少?
30 - 12 = 18
30减法12 等于 18
竖式演算
验算
- 用加法验算:18 + 12 = 30
相关题目
30 - 11 = 19
30 - 13 = 17
30 - 10 = 20
30 - 14 = 16
30 - 15 = 15
30 - 9 = 21
30 - 16 = 14
30 - 8 = 22
31 - 12 = 19
29 - 12 = 17
32 - 12 = 20
28 - 12 = 16
33 - 12 = 21
27 - 12 = 15
34 - 12 = 22
26 - 12 = 14
19 - 1 = 18
20 - 2 = 18
21 - 3 = 18
22 - 4 = 18
23 - 5 = 18
24 - 6 = 18
86 - 29 = 57
84 - 25 = 59
50 - 16 = 34
95 - 46 = 49
10 - 1 = 9
61 - 43 = 18
16 + 2 = 18
11 + 7 = 18