8.15-3.78-2.22,4.5+5.87-6.23,64+7.5+2.5,17.75+0.8-9.87,4.76+
4.76+5.87-2.
10/0.2/2.5 用简便计算 1.25*3.2*0.8 14.64+3.7*2.8 64*4.5+3.6*45 14
怎样简便怎样算 5.8+2.7-3.6 8.15-3.78-2.
2.5*3.8*0.4 6.7*4.5+4.5*13.3 2.06*0.9+2.06 0.8*[0.125+12.5+1
3.78*2.5/1.25*0.4/8怎么简便
0.5+1.5+2.5+3.5+4.5+5.5+6.5+7.5+8.5+9.5=
简便计算:5.6*8+4.5/0.25=?7.5*【63.9/(7-2.5)】=?5.5*8+4.5/0.125=?26
3/5x-5=10 2.5x=12*7.5 x:0.1=5:0.8
把4.5、7.5、12
2.5×64×1.25咋简算!今天回答!3.24×0.16+0.0324×84简算,7.5×3.1÷2.5×100咋简算
2.5-2.5×0.8简算
简便运算1.2乘以2.5乘以64,4.5乘以3.6+6.4 .7.54-(3.2-2.46)