8 加法 40 等于多少？
8 + 40 = 48
8加法40 等于 48
竖式演算
验算
- 用减法验算：48 − 40 = 8
- 用减法验算：48 − 8 = 40
相关题目
8 + 39 = 47
8 + 41 = 49
8 + 38 = 46
8 + 42 = 50
8 + 37 = 45
8 + 43 = 51
8 + 44 = 52
8 + 36 = 44
7 + 40 = 47
9 + 40 = 49
6 + 40 = 46
10 + 40 = 50
11 + 40 = 51
5 + 40 = 45
12 + 40 = 52
4 + 40 = 44
1 + 47 = 48
2 + 46 = 48
3 + 45 = 48
4 + 44 = 48
5 + 43 = 48
6 + 42 = 48
8 + 91 = 99
10 + 29 = 39
15 + 41 = 56
62 + 10 = 72
43 + 6 = 49
2 + 84 = 86
90 - 42 = 48
58 - 10 = 48