简便运算.
2.72+9.3+7.28+10.7 48.73-(5.08-1.27)
1.25×3.2×0.25
9.13×18.7-8.7×9.13 7.39÷1.25÷0.8 6.3÷1.8
7.39÷1.25÷0.8 6.3÷1.8 (9.9+1.8)÷0.9
8.37×10.1-83.7 9.5×1.1 17.3×1.1-1.37×1
6.3+4.82+3.7-0.82 307×10.1 0.45×18
132-43.7-56.3 0.32×12.5×2.5 5.6×1.25
7.6×27+7.6×174-7.6 72÷1.25÷8 270÷4.5 7.3+2.7-7.3+2.7
(7.7+15.4)÷7 9.9×34 1.5×1.2+8.8×1.5
4.7×8.3+5.2×8.3+0.83 7.12×4-1.12×4 450÷2.5÷2
12.5×8.8 (125-1.25)×0.8 3.5×0.4+3.5×0.6
39÷(1.3×5) 2.2÷4+0.6÷4 4.83÷5+2.17÷5
42÷3.5 26.7-0.5×5-7.5 48.4+2.78+51.6-0.48
2x+1/3-(x-5)=3/2
y-1/4*2=y+2/2
16x-40=9x+16
2(3-x)=-4(x+5)
2x-10.3x=15
0.52x-(1-0.52)x=80
x/2+3x/2=7
3x+7=32-2x
3x+5(138-x)=540
3x-7(x-1)=3-2(x+3)
18x+3x-3=18-2(2x-1)
3(20-y)=6y-4(y-11)
-(x/4-1)=5
3[4(5y-1)-8]=6
5(x+3)=35
x+3.7x+2=16.1
14x+3x-1.2x=158
0.52×5-4x=0.6
0.7(x+0.9)=42
1.3x+2.4×3=12.4
x+(3-0.5)=12
7.4-(x-2.1)=6