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可以简便计算就简便计算.

600÷4×25 =150×25 =3750。

1、53.2*102-2*53.2 =53.2(102-2) =53.2*100 =5320 2、(6.4+3.9-6.4+3.9)/0.13 =(6.4-6.4+3.9*2)/0.13 =3.9*2/0.13 =30*2 =60 3、5.7/0.8/5.7 =5.7/5.7/0.8 =1/0.8 =1.25 4、2.53/0.5-0.53/0.5 =(2.53-0.53)/0.5 =2/0.5 =4

2.5×38×4 =2.5×4×38 =10×38 =380 6.8×78.2+6.8×21.8 =6.8×(78.2+21.8) =6.8×100 =680 97.8-2.6×4.5 =97.8-11.7 =86.1 25-12.35-7.65 =25-(12.35+7.65) =25-20 =5 15.6+2.5×2.4 =15.6+2.5×4×0.6 =15.6+6 =21.6 (43.8-27.65)×1.2 =16.15×1.2...

1.25X0.25X4X8 =1.25X8X(0.25X4) =10X1 =10 望采纳

273-(73+27) =273-100 =173

3.9×0.01÷3.9×0.01 =(3.9÷3.9)×(0.01×0.01) =1×0.0001 =0.0001

后面8乘1.25等于10。后面是62.5然后就变成100乘62.5等于6250

(1)6000÷25=(6000×4)÷(25×4)=24000÷100=240; (2)73.2+27.3+72.7=73.2+(27.3+72.7)=73.2+100=173.2; (3)42.5-16.41-3.59=42.5-(16.41+3.59)=42.5-20=22.5;(4)29.46-(5.8-0.08)=29.46-5.72=23.74;(5)65×[(500-32)÷18]=6...

①4.5×3.4+5.5×3.4 =(4.5+5.5)×3.4=10×3.4=34;②0.36÷[(6.1-4.6)×0.8]=0.36÷[1.5×0.8]=0.36÷1.2=0.3.

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