-5+21*8/2-6-59

68/21-8-11*8+61

-2/9-7/9-56

4.6-(-3/4+1.6-4-3/4)

1/2+3+5/6-7/12

[2/3-4-1/4*(-0.4)]/1/3+2

22+(-4)+(-2)+4*3

-2*8-8*1/2+8/1/8

(2/3+1/2)/(-1/12)*(-12)

(-28)/(-6+4)+(-1)

2/(-2)+0/7-(-8)*(-2)

(1/4-5/6+1/3+2/3)/1/2

18-6/(-3)*(-2)

(5+3/8*8/30/(-2)-3

(-84)/2*(-3)/(-6)

1/2*(-4/15)/2/3

-3x+2y-5x-7y

-5+21*8/2-6-59

68/21-8-11*8+61

-2/9-7/9-56

2.4-(-3/5)+(-3.1)+4/5

(-6/13)+(-7/13)-(-2)

3/4-(-11/6)+(-7/3)

11+(-22)-3×(-11)

(-0.1)÷1/2×(-100)

2.4-(-3/5)+(-3.1)+4/5

(-6/13)+(-7/13)-(-2)

3/4-(-11/6)+(-7/3)

11+(-22)-3×(-11)

(-0.1)÷1/2×(-100)

4.6-(-3/4+1.6-4-3/4)

1/2+3+5/6-7/12

[2/3-4-1/4*(-0.4)]/1/3+2

22+(-4)+(-2)+4*3

-2*8-8*1/2+8/1/8

(2/3+1/2)/(-1/12)*(-12)

(-28)/(-6+4)+(-1)

2/(-2)+0/7-(-8)*(-2)

(1/4-5/6+1/3+2/3)/1/2

18-6/(-3)*(-2)

(5+3/8*8/30/(-2)-3

(-84)/2*(-3)/(-6)

1/2*(-4/15)/2/3

-3x+2y-5x-7y.(-8)-(-1)

2.45+(-30)

3.-1.5-(-11.5)

4.-1/4-(-1/2)

5.15-[1-(20-4)]

6.-40-28-(-19)+(-24)

7.22.54+(-4.4)+(-12.54)+4.4

8.(2/3-1/2)-(1/3-5/6)