问题
填空题
根据51×18=918填空
51×1.8=______5.1×1.8=______0.051×180=______
918÷18=______918÷0.51=______
9180÷180=______0.918÷0.51=______.
答案
因为51×18=918,
51×(18÷10)=91.8,(51÷10)×(18÷10)=9.18,(51÷1000)×(18×10)=9.18,
918÷18=51,918÷(51÷100)=1800,
(918×10)÷(18×10)=51,(918÷1000)÷(51÷100)=1.8.
故答案为:91.8,9.18,9.18,51,1800,51,1.8.