把下面的算式轉(zhuǎn)化成除數(shù)是整數(shù)的除法.
①O.56÷0.25=________÷25
②0.3402÷3.78=________÷378
③1÷0.16=________÷________
④5.2÷0.325=________÷________.
56 34.02 100 16 5200 325
分析:根據(jù)商不變的性質(zhì):在除法里,被除數(shù)和除數(shù)同時擴(kuò)大或縮小相同的倍數(shù)(0除外),商不變;據(jù)此解答.
解答:①O.56÷0.25,
=(O.56×100)÷(0.25×100),
=56÷25;
②0.3402÷3.78,
=(0.3402×100)÷(3.78×100),
=34.02÷378;
③1÷0.16,
=(1×100)÷(0.16×100),
=100÷16;
④5.2÷0.325,
=(5.2×1000)÷(0.325×1000),
=5200÷325;
故答案為:56,34.02,100,16,5200,325.
點評:此題考查商不變性質(zhì)的運用:在除法里,被除數(shù)和除數(shù)只有同時擴(kuò)大或縮小相同的倍數(shù)(0除外),商才不變.