问题 解答题

计算下面各题,能简算的要简算.

8.4×0.26+0.745.5×17.3+6.7×5.5.

答案

(1)8.4×0.26+0.74,

=2.184+0.74,

=2.924;

(2)5.5×17.3+6.7×5.5,

=5.5×(17.3+6.7),

=5.5×24,

=5.5×(20+4),

=5.5×20+5.5×4,

=110+22,

=132.

问答题
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