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0.625乘0.5加8分之5加2分之1乘百分之62.5 简便运算

=0.625*0.5+0.625*1+0.625*0.5 =0.625*(0.5+1+0.5) =0.625*2 =1.25

0.625*0.5+5/8+1/2*62.5%=0.625x(0.5+1+0.5)=0.625x2=1.25

0.625*0.5+八分之五+二分之一*62.5%=0.625*(0.5+1+1/2)=0.625*2=1.25

0.625*0.5+8分之5+2分之1*0.625=0.625(0.5+1+0.5)=0.625x2=1.25

0.625(0.5+1+1/2) =0.625 * 2 =1.25记得采纳啊

0.625(0.5+1+1/2) =0.625 * 2 =1.25

解:0.625*7又1/2+5/8*2又1/2-62.5%*2 =5/8* 7又1/2+5/8*2又1/2-5/8*2 =5/8*(7又1/2+2又1/2-2) =5/8*8 =5

0.625X0.5+8分之5+2分之1X62.5% = 0.625X0.5+0.625+0.5X0.625=0.625*(0.5+1+0.5)=0.625*2=1.25 22X4分之3+25X75-7X0.75=22X0.75+2500X0.75-7X0.75=0.75*(22+2500-7)=0.75*2515=1886.2549.5x10又5分

0.625*0.5+1又2分之1*62.5%=0.625*1/2+3/2*0.625=0.625*(1/2+3/2)=0.625*2=1.25

解由0.625*0.5+5/8*1/2-5/8=5/8*1/2+5/8*1/2-5/8=5/8*(1/2+1/2)-5/8=5/8-5/8=02解用去1/4,还剩下3/4即剩下的铁丝比用去的长是4*3/4-4*1/4=3-1=2m3设王东买书花了x元则列方程为4/7*x=45*8/9即4/7*x=40解得x=70元

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