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用简便方法计算0.12/3.7/0.5=

用简便方法计算0.12/3.7/0.5=解:0.12÷3.7÷0.5=0.12÷0.5÷3.7=0.24÷3.7=12/185

0.12*5+0.8*0.5=0.12*5+0.08*5=(0.12+0.08)*5=0.2*5=1

0.15*0.12+0.5 =(0.1+0.05)*0.12+0.5 =0.1*0.12+0.05*0.12+0.5 =0.012+0.006+0.5 =0.518

0.15*0.12+0.5=0.15*(0.1+0.02)+0.5=0.015+0.003+0.5=0.018+0.5=0.518

=13.7*0.5-3.7*0.5=(13.7-3.7)*0.5=10*0.5=5

(3.8+3.3÷0.15)*0.12 =(3.8+22)X0.12 =25.8X0.12 =25X0.12+0.8X0.12 =25X0.4X0.3+0.8X0.1+0.8X0.02 =10X0.3+0.08+0.016 =3+0.08+0.016 =3.096 (12.6÷0.5+4.8)÷0.06 =(12.6X2+4.8)/0.06 =(25.2+4.8)/0.06 =30/0.06 =3000/6 =500 9.8/14 =9.8/7/2 =1.4/2 =0.7

一.9.8*4.5=(10-0.2)*4.5=45-0.9=44.1 二.2.4*2.5*3.7=0.4*6*0.5*5*3.7=(0.4*0.5)*(6*5)*3.7=0.2*30*3.7=6*3.7=22.2三.12.5*9.8-4.9*5=4.9*(12.5*2-5)=4.9*20=98 希望能帮到你!

(2.5+ 0.12)*0.5=2.62*0.5=2.62*1/2=1.31.

3.7*0.26*0.5=3.7*0.13=0.481

0.25*(3.6+1)+5*0.5*0.6*0.6=0.9+0.25+3*0.3=1.825

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