http://zhidao.baidu.com/q?word=%C7%F3%BC%F2%B1%E3%BC%C6%CB%E3%CC%E2&lm=0&fr=search&ct=17&pn=0&tn=ikaslist&rn=10
x＋3.86=5.46 17.89－x=12.89 40.8＋x=57.3 x－3.25=16
2x＋0.82＝8.2 3＋0.5x＝7 7.8÷x＝2.6 80x÷4＝12
5－0.9x＝2.75 2x＋0.4x=48 6－2x＋6x=18 35x＋13x=9.6
0.52×5－4x=0.6 0.7(x＋0.9)=42 1.3x＋2.4×3=12.4
3.5x = 140 2x +5 = 40 15x+6x = 168
5x＋1.5 = 4.5 13.7—x = 5.29 4.2 × 3—3x = 5.1 (写出检验过程)
20.5－4x=8.1 3.6x÷1.2=9.75
18×1.5－1.7x=13.4 18.5x－9.9x=1.721 9.2x+1.5x=32.1 7.2×5－8x=11.24x＋3×0.7＝6.5
（x－0.5）=1.6
3x×2.34=4.914 1.44÷x=0.4
(口算)
0.6×1.2= 0.84÷0.6= 4.5×0.1=
15×0.4= 0.1×0.5= 2.8÷7=
100÷0.01= 1.4×3= 0.72÷8=
6÷0.03= 0.5×0.6= 40×0.9=
4÷0.5= 7×2.1= 8.89+0.1=
24×0.25= 0.1÷0.01= 2.4×0.8=
9×0.4= 10×0.01= 30.2-3.02=
4.3-0.25= 1-0.82= 9.6÷0.3=
2.6×0.01= 0×25.4= 4.8×0.4=
7.2＋2.8=
12×2.5＝
2.63＋0.37＝
0.7×16－16×0.2=
0.96÷0.3＝
1.5－4.5=
2.5×0.4
1.4×2.5×4＝
8－2.5＝
6÷1.2=
9.2÷2.3=
24÷4＋56÷4＝
0.36＋0.64＝
4÷0.25=
1.8×5=
30×（200＋3）＝
8.4÷4.2=
8×1.5＝
4.8÷0.3=
2.73＋1.5×4＝
计算下面各题(能简算的要简算)
7.05×23.7+7.05×76.3 0.125×3.2×2.5
12+23.1÷0.75)×0.4－5.12 1.6×[(12－7.2)÷(0.84÷2.1)]
12.81－(1.5+7.81) 8.7×2.6+6.4×8.7+8.7
1025－1125÷4.5×3.6 [2+2.53÷(0.44×1.25)]÷0.66
(16.45－1.82－4.45－2.18)÷1.25
12.25－3.1＋0.85－6.17 （1.9－1.9×0.9）÷（3.8－2.8）
2.65×1.7＋1.35×1.7 630÷[2.98＋6.5×（3.2－3.12）]