68 加法 9 等于多少？
68 + 9 = 77
68加法9 等于 77
竖式演算
验算
- 用减法验算：77 − 9 = 68
- 用减法验算：77 − 68 = 9
相关题目
68 + 8 = 76
68 + 10 = 78
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68 + 7 = 75
68 + 12 = 80
68 + 6 = 74
68 + 13 = 81
68 + 5 = 73
67 + 9 = 76
69 + 9 = 78
66 + 9 = 75
70 + 9 = 79
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64 + 9 = 73
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1 + 76 = 77
2 + 75 = 77
3 + 74 = 77
4 + 73 = 77
5 + 72 = 77
6 + 71 = 77
28 + 16 = 44
78 + 70 = 148
83 + 33 = 116
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94 + 10 = 104
23 + 17 = 40
96 - 19 = 77
87 - 10 = 77