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102 36r的简便运算

102*40+102*3=4080+306=4386

(100+2)x36=100x36+36x2=3600+72=3672

102x75=(100+2)*75=7500+150=7650

=(100+2)*27=100*27+2*27=2700+54=2754

102x54=(100+2)x54=100x54+2x54=5400+108=5508 朋友,请【采纳答案】,您的采纳是我答题的动力,谢谢.

102x29-58=102x29-2x29=(102-2)x29=100x29=2900

102x85=(100+2)x85=100x85+2x85=8500+170=8670

102*76=(100+2)*76=100*76+2*76=7600+152=7752

102x48=(100+2)x48=100x48+2x48=4800+96=4896

102 x 76 = ( 100+ 2) x 76 =7600+152=7752 完全口算.

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