题目内容
【题目】计算下面各题,能简算的要简算.
6.2×0.83+0.17×6.2 0.6×0.25×0.9×0.4
5.6÷0.7﹣1.3×2 19.2+[(11.8+12.2)÷6]
【答案】6.2;0.054
5.4;23.2
【解析】
①6.2×0.83+0.17×6.2
=6.2×(0.83+0.17)
=6.2×1
=6.2
②0.6×0.25×0.9×0.4
=0.6×0.9×(0.25×0.4)
=0.54×0.1
=0.054
③5.6÷0.7﹣1.3×2
=8﹣2.6
=5.4
④19.2+[(11.8+12.2)÷6]
=19.2+[24÷6]
=19.2+4
=23.2
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