我要有理数加减乘除乘方混合运算,急
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 =2...全部
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(-4)x4 (-9)x2=(-16) (-18)=-34(-1)³x(-6x½)=(-1)x(-3)=39¾x(-7)=10x(-7)-¼x(-7)=-70-1¾=68¼2²x[(-7)x(-3²)]=4x[(-7)x(-9)]=4x63=252-7²-(-6)²x(-1²)=-49-36x(-1)=-49-(-36)=-134。
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) 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)3 2^2×(-1/5)18-6÷(-2)×(-1/3)(-3)^2×[-2/3 (-5/9)] 8 (-3)^2×(-2)100÷(-2)^2-(-2)÷(-2/3) 36×(1/2-1/3)^212。
7÷(-8/19)×0 4×(-3)^2 6(-3/4)×(-8 2/3-1/3) (-2)^3-13÷(-1/2) 0-2^3÷(-4)^3-1/8(-2)^3×0。5-(-1。
6)^2÷(-2)^2 (-3/2)×[(-2/3)^2-2][(-3)^2-(-5)^2]÷(-2) 16÷(-2)^3-(-1/8)×(-4)自己解答吧(1) (-9)-(-13) (-20) (-2)(2) 3 13-(-7)/6(3) (-2)-8-14-13(4) (-7)*(-1)/7 8(5) (-11)*4-(-18)/18(6) 4 (-11)-1/(-3)(7) (-17)-6-16/(-18)(8) 5/7 (-1)-(-8)(9) (-1)*(-1) 15 1(10) 3-(-5)*3/(-15)(11) 6*(-14)-(-14) (-13)(12) (-15)*(-13)-(-17)-(-4)(13) (-20)/13/(-7) 11(14) 8 (-1)/7 (-4)(15) (-13)-(-9)*16*(-12)(16) (-1) 4*19 (-2)(17) (-17)*(-9)-20 (-6)(18) (-5)/12-(-16)*(-15)(19) (-3)-13*(-5)*13(20) 5 (-7) 17-10(21) (-10)-(-16)-13*(-16)(22) (-14) 4-19-12(23) 5*13/14/(-10)(24) 3*1*17/(-10)(25) 6 (-12) 15-(-15)(26) 15/9/13 (-7)(27) 2/(-10)*1-(-8)(28) 11/(-19) (-14)-5(29) 19-16 18/(-11)(30) (-1)/19 (-5) 1。收起