11 加法 21 等于多少？
11 + 21 = 32
11加法21 等于 32
竖式演算
验算
- 用减法验算：32 − 21 = 11
- 用减法验算：32 − 11 = 21
相关题目
11 + 20 = 31
11 + 22 = 33
11 + 19 = 30
11 + 23 = 34
11 + 24 = 35
11 + 18 = 29
11 + 25 = 36
11 + 17 = 28
10 + 21 = 31
12 + 21 = 33
13 + 21 = 34
9 + 21 = 30
14 + 21 = 35
8 + 21 = 29
15 + 21 = 36
7 + 21 = 28
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2 + 30 = 32
3 + 29 = 32
4 + 28 = 32
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6 + 26 = 32
35 + 34 = 69
1 + 90 = 91
22 + 66 = 88
90 + 3 = 93
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48 + 30 = 78
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93 - 61 = 32