31 加法 16 等于多少？
31 + 16 = 47
31加法16 等于 47
竖式演算
验算
- 用减法验算：47 − 16 = 31
- 用减法验算：47 − 31 = 16
相关题目
31 + 15 = 46
31 + 17 = 48
31 + 14 = 45
31 + 18 = 49
31 + 13 = 44
31 + 19 = 50
31 + 20 = 51
31 + 12 = 43
30 + 16 = 46
32 + 16 = 48
29 + 16 = 45
33 + 16 = 49
28 + 16 = 44
34 + 16 = 50
35 + 16 = 51
27 + 16 = 43
1 + 46 = 47
2 + 45 = 47
3 + 44 = 47
4 + 43 = 47
5 + 42 = 47
6 + 41 = 47
50 + 38 = 88
15 + 14 = 29
20 + 62 = 82
5 + 1 = 6
100 + 39 = 139
42 + 56 = 98
88 - 41 = 47
47 × 1 = 47