求50道有理数加减乘除加乘方的题要有答案的
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3+2^2×(-1/5)解:原式=3+4×(-1/5) =3-4/5 =11/5 18-6÷(-2)×(-1/3)解:原式=18-(-3)×(-1/3) =18-1 =17 (-3)^2×[-2/3+(-5/9)]解:原式=9×(-11/9) =-11 8+(-3)^2×(-2)解:原式=8+9×(-2) =8-18 =-10 100÷(-2)^2-(-2)÷(-2/3)解:原式=100÷4-3 =25-3 =22 36×(1/2-1/3)^2解:原式=36×(1/6)^2 =36×(1/36) =1 12.7÷(-8/19)×0解:原式=0 4×(-3)^2+6解:原式=4×9+6 =36+6 =42 (-3/4)×(-8+2/3-1/3)解:原式=(-3/4)×(-8+1/3) =(-3/4)×(-23/3) =23/4 (-2)^3-13÷(-1/2)解:原式=(-8)-(-26) =18 0-2^3÷(-4)^3-1/8解:原式=0-8÷(-64)-1/8 =0+1/8-1/8 =0 (-2)^3×0.5-(-1.6)^2÷(-2)^2解:原式=(-8)×(1/2)-(-8/5)^2÷4 =(-4)-(64/25)÷4 =(-4)-16/25 =-116/25 (-3/2)×[(-2/3)^2-2]解:原式=(-3/2)×(4/9-2) =(-3/2)×(-14/9) =7/3 [(-3)^2-(-5)^2]÷(-2)解:原式=(9-25)÷(-2) =(-16)÷(-2) =8 16÷(-2)^3-(-1/8)×(-4)解:原式=16÷(-8)-1/2 =-2-1/2 =-5/2 39+[-23]+0+[-16]= 0
[-18]+29+[-52]+60= 19 [-3]+[-2]+[-1]+0+1+2= -3 [-301]+125+301+[-75]= 50 [-1]+[-1/2]+3/4+[-1/4]= -1 [-7/2]+5/6+[-0.5]+4/5+19/6= 1.25 [-26.54]+[-6.14]+18.54+6.14= -8 1.125+[-17/5]+[-1/8]+[-0.6]= -3 [-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3) 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
[-18]+29+[-52]+60= 19 [-3]+[-2]+[-1]+0+1+2= -3 [-301]+125+301+[-75]= 50 [-1]+[-1/2]+3/4+[-1/4]= -1 [-7/2]+5/6+[-0.5]+4/5+19/6= 1.25 [-26.54]+[-6.14]+18.54+6.14= -8 1.125+[-17/5]+[-1/8]+[-0.6]= -3 [-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3) 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
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