题目内容
【题目】用简便方法计算下面各题。
0.48×1.5+1.5×0.52 5.84÷0.25÷4
72.6×9.9+7.26 12.5×5.19×0.08
【答案】1.5;5.84
726;5.19
【解析】
0.48×1.5+1.5×0.52
=1.5×(0.48+0.52)
=1.5
5.84÷0.25÷4
=5.84÷(0.25×4)
=5.84÷1
=5.84
72.6×9.9+7.26
=7.26×99+7.26
=7.26×(99+1)
=7.26×100
=726
12.5×5.19×0.08
=12.5×0.08×5.19
=1×5.19
=5.19
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