42 减法 40 等于多少?
42 - 40 = 2
42减法40 等于 2
竖式演算
验算
- 用加法验算:2 + 40 = 42
相关题目
42 - 39 = 3
42 - 41 = 1
42 - 38 = 4
42 - 42 = 0
42 - 37 = 5
42 - 36 = 6
42 - 35 = 7
42 - 34 = 8
41 - 40 = 1
43 - 40 = 3
40 - 40 = 0
44 - 40 = 4
45 - 40 = 5
46 - 40 = 6
47 - 40 = 7
48 - 40 = 8
3 - 1 = 2
4 - 2 = 2
5 - 3 = 2
6 - 4 = 2
7 - 5 = 2
8 - 6 = 2
88 - 60 = 28
73 - 72 = 1
76 - 56 = 20
59 - 32 = 27
88 - 34 = 54
94 - 81 = 13
1 × 2 = 2
2 × 1 = 2