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98×45简便运算

98×45 =(100-2)×45 =100×45-2×45 =4500-90 =4410

98×45 =(100-2)×45 =100×45-2×45 =4500-90 =4410 你好,本题已解答,如果满意 请点右上角“采纳答案”。

你是不是抄错题了?如果是45+45×98+45=45×2+45×98=45×(2+98)=45×100=4500

45/98×99 =45/98×(98+1) =45+45/98 =45又45/98 希望我的回答对您有帮助,有问题可以追问。 满意请及时采纳,谢谢!

45×98+90 =45×98+45×2 =45×(98+2) =45×100 =4500

45/97x98 =45/97x(97+1) =45/97x97+45/97 =45+45/97 =45又97分之45

98x0.45 =(100-2)x0.45 =100x0.45-2x0.45 =45-0.9 =44.1

46x98 =46x(100-2) =46x100-46x2 =4600-92 =4508 希望能帮到你!

22.98x98+45.6 =22.98x100-22.98x2+45.6 =2298+45.6-45.96 =2298-0.36 =2297.64

74×98用简便方法计算 74×98 =74*(100-2) =74*100-74*2 =7252

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