0.9÷0.5=9÷5.
.(判斷對錯)
分析:根據(jù)商不變性質:被除數(shù)和除數(shù)同時擴大或縮小相同的倍數(shù)(0除外),商不變;據(jù)此解答.
解答:解:0.9÷0.5變?yōu)?÷5,被除數(shù)和除數(shù)同時擴大10倍,根據(jù)商不變性質,0.9÷0.5=9÷5;
故答案為:√.
點評:此題考查了商不變性質的靈活運用.
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