7.5÷0.15=75÷
1.5
1.5
=
750
750
÷15=
50
50
分析:根據(jù)商不變的性質(zhì),被除數(shù)和除數(shù)同時(shí)乘或同時(shí)除以相同的數(shù)(0除外),商不變;由此解答即可.
解答:解:7.5÷0.15=75÷1.5=750÷15=50;
故答案為:1.5,750,50.
點(diǎn)評(píng):本題主要考查了商不變的性質(zhì)的實(shí)際應(yīng)用.
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