7.8*2.4*81/2/3/5/1 3/10/1/2
问题描述:
7.8*2.4*81/2/3/5/1 3/10/1/2
7.8*2.4*(81/2)/(3/5)/(1又3/10)/(1/2)
答
7.8*2.4*(81/2)/(3/5)/(1又3/10)/(1/2)
=13*0.6*2.4*(81/2)*(5/3)*(10/13)*2
=13*(10/13)*0.6*(81/2)*2*2.4*(5/3)
=10*0.6*81*4
=1944