问题 解答题
脱式计算.
500-271+181400-28×2645×27+123.
答案

(1)500-271+18,

=229+18,

=247;

(2)1400-28×26,

=1400-728,

=672;

(3)45×27+123,

=1215+123,

=1338.

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