题目内容
接着往下算.
①700÷25
=(700×4)÷(25×4)
=
=
②4000÷125
=(4000×8)÷(125×8)
=
=
①700÷25
=(700×4)÷(25×4)
=
=
②4000÷125
=(4000×8)÷(125×8)
=
=
分析:根据商不变性质:被除数和除数同时扩大或缩小相同的倍数(0除外),商不变;据此解答.
解答:解:①700÷25
=(700×4)÷(25×4)
=2800÷100
=28;
②4000÷125
=(4000×8)÷(125×8)
=32000÷1000
=32.
=(700×4)÷(25×4)
=2800÷100
=28;
②4000÷125
=(4000×8)÷(125×8)
=32000÷1000
=32.
点评:解答此题应明确:只有被除数和除数同时扩大或缩小相同的倍数(0除外),商才不变.
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