63 加法 21 等于多少？
63 + 21 = 84
63加法21 等于 84
竖式演算
验算
- 用减法验算：84 − 21 = 63
- 用减法验算：84 − 63 = 21
相关题目
63 + 20 = 83
63 + 22 = 85
63 + 19 = 82
63 + 23 = 86
63 + 24 = 87
63 + 18 = 81
63 + 25 = 88
63 + 17 = 80
62 + 21 = 83
64 + 21 = 85
65 + 21 = 86
61 + 21 = 82
66 + 21 = 87
60 + 21 = 81
67 + 21 = 88
59 + 21 = 80
1 + 83 = 84
2 + 82 = 84
3 + 81 = 84
4 + 80 = 84
5 + 79 = 84
6 + 78 = 84
50 + 13 = 63
81 + 8 = 89
64 + 2 = 66
30 + 42 = 72
33 + 50 = 83
10 + 87 = 97
84 × 1 = 84
95 - 11 = 84