第1个回答 2012-02-01
21*12= 32*90= 36/12= 45/9= 23*21+54/9= 39/3+6*(21/3)=
1.2*2.4= 0.9*0.12= 9/0.9= 3.2/0.8= 0.8*10+9*(0.5*2)=
45×0.2= 0.88÷0.44= 2-1.2= 12.5×0.8=
1-0.2÷0.2= 0×6.3÷9= 4.2÷7×7= 4.5×2÷4.5×2=
5.53+1.47= 5-3.28= 0.46÷4.6= 2.6×7÷2.6×7= 0.7×16-16×0.2=
4.5×0.4= 0.63÷0.7= 5÷0.25= 5÷2×0.8= 85÷(1-0.9)=
8÷0.01= 0.72+0.18= 4×0.25= 9+7.8-3.8= 7×0.4÷7×0.4=
18.4-1.84= 4÷50 = 0.72÷0.08= 1.08÷0.9×5= 9.58×101-9.58=
脱式计算,能简便的要简便计算。
42÷(5.25÷0.25) 0.4+12.6÷0.28×0.2 8.4-8.4×1.5÷1.8
0.27×99+0.27 2.5×3.2×0.125 13.5÷2.5÷0.125÷0.4÷8
13/5-0.81 -0.19 7/8+1/8 -5/9 -4/9
5 -(0.5 -3/10 ) 7.68 - 7.68×0.5 5.2+4.8×3.5