12.5*0.4*2.5*8简便方法

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12.5*0.4*2.5*8简便方法
24*0.4+75/2.5+0.4怎么简算

24*0.4+75/2.5+0.4=0.4*(24+1)+30=0.4*25+30=10+30=40

2.5*(8-0.4)*12.5简算

2.5*(8-0.4)*12.5=2.5*12.5*(8-0.4)=2.5*12.5*8-2.5*12.5*0.4=2.5*(12.5*8)-(2.5*0.4)*12.5=2.5*100-1*12.5

12.5×2.5×(80+0.4)简便计算怎么做

12.5×2.5×(80+0.4)=12.5×80×2.5+12.5×2.5×0.4=1000×2.5+12.5×1=2500+12.5=2512.5

简便运算 34.8*88.8/4.44 12.5*(6+2.4)+2.5*0.4

34.8*88.8/4.44=34.8*(88.8/4.44)=34.8*20=69612.5*(6+2.4)+2.5*0.4=2.5*5*(6+2.4)+2.5*0.4=2.5*(30+12)+2.

简算:8*0.4*1.25*2.5

8*0.4*1.25*2.5=(8×1.25)×(0.4×2.5)=10×1=10

3.52-2.5/0.4怎样简别

3.52-25/4=3.52-6.25=-2.73

1000/0.4/1.25/8/2.5

0.4*2.5=11.25*8=10等效为1000/10/1=100

计算7.5*2.3+2.9*2.5+12.5*0.4怎样算简便?

=2.5x6.9+2.9x2.5+2.5x2=2.5x(6.9+2.9+2)=2.5x11.8=2.5x2x5.9=29.5

0.4*(1.25+2.5)*8巧算

0.4*(1.25+2.5)*8=0.4×1.25×8+0.4×2.5×8=4+8=12

2.5x(12.5+0.4)x8怎么巧算

2.5×12.9×8=2.5×8×12.9=20×12.9=258

12.5*(8+0.4)*2.5(递等式计算)

12.5*(8+0.4)*2.5=12.5*8*2.5+12.5*0.4*2.5=100*2.5+12.5*1=250+12.5=262.5

12.5*(8+0.4)+25 巧算

12.5*(8+0.4)+25=12.5x8+12.5x0.4+25=100+5+25=130

5.6+7.8+4.4 2.5乘12.5乘8乘0.4

5.6+7.8+4.4=5.6+4.4+7.8=10+7.8=17.82.5x12.5x8x0.4=(2.5x0.4)x(12.5x8)=1x100=10015.8-7.32-2.68=15.8-(7

化简根号下0.4分之2.5

√2.5/0.4=√25/4=5/2如果本题有什么不明白可以追问,如果满意请点击右下角“好评”另外发并点击我的头像向我求助,请谅解,

12.5×0.4×2.5×8的简便运算

12.5×0.4×2.5×8=(12.5×8)×(0.4×2.5)=100×1=100

12.5*0.4*2.5*8怎么简便计算?

12.5*8*0.4*2.5=100*1=100