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102乘以45的简便计算

102乘以45简便计算 解:根据分配律的运用, 原式=(100+2)x45 =100x45+2x45 =4500+90 =4590

解:原式=45×(100+2) =45×100+45×2 =4500+90 =4590

102×45 =(100+2)×45 =4500+90 =4590

3.45x102 =3.45x(100+2) =3.45x100+3.45x2 =345+6.9 =351.9 祝你学习进步!

45×102 =45×(100+2) =45×100+45×2 =4500+90 =4590

45乘102减90简便计算 45x102-90 =45x102-45x2 =45x(102-2) =45x100 =4500

您好: 102x0.45 =100x0.45+2x0.45 =45+0.9 =45.9 如果本题有什么不明白可以追问,如果满意记得采纳 如果有其他问题请另发或点击向我求助,答题不易,请谅解,谢谢。 祝学习进步!

0.45x102=(100+2)x0.45=100x0.45+2x0.45=45+0.9=45.9

=3.45*100+3.45*2 =345+6.9 =351.9 O(∩_∩)O谢谢

3。45×100加3。45×2=345加6。9=351。9

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