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75%乘1.375加5.625乘75%加0.75(简便运算)

0.75+5.625×4分之3+75%×1.375 =0.75×(1+5.625+1.375) =0.75×8 =6

(1)(13+216?512)×12=13×12+136×12-512×12,=4+26-5,=25;(2)[47?(18.75?1÷815)×2625]÷0.46=[47-(18.75-158)×5625]÷0.46,=[47-(18.75×5625-1.875×5625)]÷0.46,=[47-(42-4.2)]÷0.46,=[47-37.8]÷0.46,=9.2÷0.46,=20;(3)75%×1.37...

八分之五和百分之62.5都是0.625,这个式子中就有了三个0.625,把0.625提出来,把二分之一变成0.5,即=0.625*(0.5+1+0.5)=0.625*2=1.25

4×5/8+62.5%×7-0.625 =0.625×(4+7-1) =0.625×10 =6.25 请点采纳谢谢

8分之5乘5.3加5.7乘8分之5减0.625 =5/8x5.3+5/8x5.7-5/8 =(5.3+5.7-1)x5/8 =10x5/8 =25/4

3/8+2.25+3/4+5.625 =0.375+5.625+2.25+0.75 =6+3 =9 谢谢,请采纳

和等于625,是25的平方,也等于125乘于5!

脱式计算 4乘8分之5加62.5%乘7减0.625 =4x0.625+0.625x7-0.625 =(4+7-1)x0.625 =10x0.625 =6.25

解:原式=3/4×3/8+13/8×4/3-3/4 =9/32+13/6-3/4 =9/32+26/12-9/12 =9/32+17/12 =163/96 解:原式=12/125+7/25+14/125 =12/125+14/125+7/25 =26/125+35/125 =0.488 解:5=5/24x x=5÷5/24 x=5×24/5 x=24 很高兴为您解答,祝你学习进步>学习宝典】...

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