有理数减法计算题50道

-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) 45+(-30) 1.5-(-11.5) 1/4-(-1/2) 15-[1-(20-4)] -40-28-(-19)+(-24) 22.54+(-4.4)+(-12.54)+4.4 (2/3-1/2)-(1/3-5/6)本回答被提问者采纳

（—5.4）—（+6二十分之十三）—1四分之一
=-5.4-(6+0.65)-(1+0.25)
=-5.4-6-0.65-1-0.25
=-5.4-7-0.9
=-13.3