16.4+3.5+83.6+166.5?????????????????2.×38.3+1.7×.

发布时间:2020-08-09 08:51:57

16.4+3.5+83.6+166.5?????????????????2.×38.3+1.7×.

网友回答

解:(1)16.4+3.5+83.6+166.5
=(16.4+83.6)+(3.5+166.5)
=100+170
=270;
(2)×38.3+1.7×
=×(38.3+1.7)
=×40
=32;
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