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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