84.78元、59.50元、121.61元、12.43元以及66.50元的总和是:()。
A.343.73
B.343.83
C.344.73
D.344.82
查看答案
正确答案: D 答案分析: 实际上你只要把最后一位小数加一下,就会发现和的最后一位数是2,只有D项符合要求。就是说你应当动脑筋想出解题的捷径。
包含此试题的试卷:
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