问题 解答题

100.5×27-0.5×27.

答案

100.5×27-0.5×27,

=(100+0.5)×27-0.5×27,

=100×27+0.5×27-0.5×27,

=100×27,

=2700.

或(100.5-0.5)×27,

=100×27,

=2700.

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