45 减法 30 等于多少?
45 - 30 = 15
45减法30 等于 15
竖式演算
验算
- 用加法验算:15 + 30 = 45
相关题目
45 - 29 = 16
45 - 31 = 14
45 - 28 = 17
45 - 32 = 13
45 - 33 = 12
45 - 27 = 18
45 - 34 = 11
45 - 26 = 19
44 - 30 = 14
46 - 30 = 16
43 - 30 = 13
47 - 30 = 17
42 - 30 = 12
48 - 30 = 18
49 - 30 = 19
41 - 30 = 11
16 - 1 = 15
17 - 2 = 15
18 - 3 = 15
19 - 4 = 15
20 - 5 = 15
21 - 6 = 15
69 - 48 = 21
74 - 12 = 62
87 - 25 = 62
66 - 23 = 43
87 - 62 = 25
55 - 25 = 30
11 + 4 = 15
8 + 7 = 15