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48-(5.2+2.03×10)简便运算

答:48-(5.2-2.03*10) =48-5.2+20.3 =48+15.1 =63.1

48-(5.2+2.03*10)=48-(5.2+20.3)=48-25.5=48-25-0.5=23-0.5=22.5

原式=48-(5.2+20.3) =48-25.5 =22.5, 没有简便运算.

按照正常顺序算即可

32.3-(5.02+20.3) =32.3-20.3-5.02 =12-5.02 =6.98

48(5.2+2.03x10)简便计算=48一(5.2+20.3)=48一25.5=22.5

48*0.27+5.2*2.7解:简便计算=4.8x2.7+5.2x2.7=(4.8+5.2)x2.7 乘法分配律=10x2.7=27祝学习进步.

48*73+5.2*730 =48*73+52*73 =(48+52)*73 =100*73 =7300

原式=48*【10+0.2】=48*10+48*0.2=480+9.6=489.6 满意采纳啊

25*(4+10)=25*4+25*10=100+250=350

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