题目内容

【题目】计算下面各题,能简算就简算。

8.4×2.7+7.3×8.4 (3.2+0.16)÷0.8

4.6×1.02 3.6÷0.4+1.25×4

【答案】84 4.2 4.692 14

【解析】

8.4×2.7+7.3×8.4

=8.4×(2.7+7.3)

=8.4×10

=84    

(3.2+0.16)÷0.8

=3.36÷0.8

=4.2

4.6×1.02

=4.6×(1+0.02)

=4.6+4.6×0.02

=4.6+0.092

=4.692  

3.6÷0.4+1.25×4

=9+1.25×8÷2

=9+10÷2

=9+5

=14

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