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(12.5%1.25)乘0.8(简便计算)

如图

(1)10.6-(6.6+0.125+12.5%),=(10.6-6.6)-(0.125+0.125),=4-0.25,=3.75;(2)(459+0.8+349)×1.25,=[(459+349)+0.8]×1.25,=[8+0.8]×1.25,=8×1.25+0.8×1.25,=10+1,=11;(3)12×(160+117)+5÷17,=12×160+12×117+5×117,=15+...

1.25―12.5%除以8/1 解答,算式如下: 1.25-12.5%÷8/1 =1.25-1/8÷8 =5/4-1/64 =79/64

1.25×32×12.5%?脱式计算 1.25×32×12.5%? =1.25*8*4*0.125 =10*0.5 =5

解: 1/8 *9+1.25*6+7/8+4 *12.5% =(9/8+7/8)+(1.25 *6+4*0.125) =16/8+1.25*(6+0.4) =2+1.25*6.4 =2+1/8*64 =2+8 =10

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