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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

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

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

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

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!

102x45 =(100+2)x45 =100x45+2x45 =4500+90 =4590,我是数学老师,有什么数学问题就找我,就这样,请你采纳

精(100+2)*45 锐=45*100+45*2 五=4500+90 角=4590 场

=45×(102-2) =45×100 =4500

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