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500 减302简便计算(要列试)

302×99-198 =302*(100-1)-198 =302*100-302-198 =30200-(302+198) =30200-500 =29700

简便算法: 6+2-8=0 300+300=600 结果是600

286+302的简便计算 解答: 286+302 =286+300+2 =586+2 =588

=(300+2)*83 =300*83+2*83 =24900+166 =25066 如果你对我的回答满意,请【采纳为满意答案】,若有疑问,可继续询问,直至弄懂

=(300+2)X83 =300X83+2X83 =24900+166 =25066

302x25 =(300+2)x25 =300x25+2x25 =7500+50 =7550

用简便计算302*32? 302*32 =300*32+2*32 =9600+64 =9664

解: 127+302(将三位数分解成整百数+两位数或个位数) =(100+27)+(2+300) =100+27+2+300 =(100+300)+(27+2)(将两个整百数相加,其余两数相加,达到简易的效果) =400+29 =429

302×101-302的简便计算 =302x(101-1) =302x100 =30200

127十302 =127+300+2 =427+2 =429 请采纳正确答案,你们只提问,不采纳正确答案,回答都没有劲!谢谢管理员推荐采纳!! 朋友,请【采纳答案】,您的采纳是我答题的动力,如果没有明白,请追问。谢谢。

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