20个有理数的混合运算(要有过程)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)+
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![20个有理数的混合运算(要有过程)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)+](/uploads/image/z/447934-22-4.jpg?t=20%E4%B8%AA%E6%9C%89%E7%90%86%E6%95%B0%E7%9A%84%E6%B7%B7%E5%90%88%E8%BF%90%E7%AE%97%EF%BC%88%E8%A6%81%E6%9C%89%E8%BF%87%E7%A8%8B%EF%BC%891%29+%28-9%29-%28-13%29%2B%28-20%29%2B%28-2%29%282%29+3%2B13-%28-7%29%2F6%283%29+%28-2%29-8-14-13%284%29+%28-7%29%2A%28-1%29%2F7%2B8%285%29+%28-11%29%2A4-%28-18%29%2F18%286%29+4%2B%28-11%29-1%2F%28-3%29%287%29+%28-17%29-6-16%2F%28-18%29%288%29+5%2F7%2B%28-1%29-%28-8%29%289%29+%28-1%29%2A%28-1%29%2B15%2B1%2810%29+3-%28-5%29%2A3%2F%28-15%29%2811%29+6%2A%28-14%29-%28-14%29%2B)
20个有理数的混合运算(要有过程)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)+
20个有理数的混合运算(要有过程)
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
20个有理数的混合运算(要有过程)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)+
1) (-9)-(-13)+(-20)+(-2)
原式=-9+13-20-2
=(-9-20-2)+13
=-18
(2) 3+13-(-7)/6
原式=16+7/6
=96/6+7/6
=103/6
(3) (-2)-8-14-13
原式=-2-8-14-13
=-37
(4) (-7)*(-1)/7+8
原式=1+8
=9
(5) (-11)*4-(-18)/18
原式=-44+1
=-43
(6) 4+(-11)-1/(-3)
原式=4-11+1/3
=-7+1/3
=-21/3+1/3
=--20/3
(7) (-17)-6-16/(-18)
原式=-17-6+8/9
=-23+8/9
=-207/9+8/9
=-199/9
(8) 5/7+(-1)-(-8)
原式=5/7-1+8
=5/7+7
=54/7
(9) (-1)*(-1)+15+1
原式=1+15+1
=17
(10) 3-(-5)*3/(-15)
原式=3-1
=2
(11) 6*(-14)-(-14)+(-13)
原式=-84+14-13
=-83
(12) (-15)*(-13)-(-17)-(-4)
原式=195+17+4
=216
(13) (-20)/13/(-7)+11
原式=140/13+11
=283/13
(14) 8+(-1)/7+(-4)
原式=8-1/7-4
=4-1/7
=27/7
(15) (-13)-(-9)*16*(-12)
原式=-13-1728
=-1741
(16) (-1)+4*19+(-2)
原式=-1+76-2
=76-3
=73
(17) (-17)*(-9)-20+(-6)
原式=153-20-6
=153-26
=127
(18) (-5)/12-(-16)*(-15)
原式=-5/12-240
=-2885/12
(19) (-3)-13*(-5)*13
原式=-3+845
=842
(20) 5+(-7)+17-10
原式=22-17
=5