题目内容：

120道有理数四则运算计算题
最好简单点,也不要太简单,

优质解答

(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
(31) (-5)+19/10*(-5)
(32) 11/(-17)*(-13)*12
(33) (-8)+(-10)/8*17
(34) 7-(-12)/(-1)+(-12)
(35) 12+12-19+20
(36) (-13)*(-11)*20+(-4)
(37) 17/(-2)-2*(-19)
(38) 1-12*(-16)+(-9)
(39) 13*(-14)-15/20
(40) (-15)*(-13)-6/(-9)
(41) 15*(-1)/12+7
(42) (-13)+(-16)+(-14)-(-6)
(43) 14*12*(-20)*(-13)
(44) 17-9-20+(-10)
(45) 12/(-14)+(-14)+(-2)
(46) (-15)-12/(-17)-(-3)
(47) 6-3/9/(-8)
(48) (-20)*(-15)*10*(-4)
(49) 7/(-2)*(-3)/(-14)
(50) 13/2*18*(-7)
(51) 13*5+6+3
(52) (-15)/5/3+(-20)
(53) 19*4+17-4
(54) (-11)-(-6)*(-4)*(-9)
(55) (-16)+16-(-8)*(-13)
(56) 16/(-1)/(-10)/(-20)
(57) (-1)-(-9)-9/(-19)
(58) 13*20*(-13)*4
(59) 11*(-6)-3+18
(60) (-20)+(-12)+(-1)+(-12)
(61) (-19)-3*(-13)*4
(62) (-13)/3-5*8
(63) (-15)/1+17*(-18)
(64) (-13)/3/19/8
(65) (-3)/(-13)/20*5
(66) 3/12/(-18)-18
(67) 5*(-19)/13+(-6)
(68) 4+4*(-19)-11
(69) (-2)+17-5+(-1)
(70) 9+(-3)*19*(-19)
(71) (-12)-(-6)+17/2
(72) 15*(-5)-(-3)/5
(73) (-10)*2/(-1)/4
(74) (-8)*16/(-6)+4
(75) 2-11+12+10
(76) (-3)+(-20)*(-7)*(-9)
(77) (-15)+8-17/7
(78) (-14)*10+18*2
(79) (-7)+2-(-17)*19
(80) (-7)/18/1+1
(81) 11/(-9)-(-16)/17
(82) 15+5*6-(-8)
(83) (-13)*(-18)+18/(-6)
(84) 11-(-1)/11*(-6)
(85) (-4)+(-12)+19/6
(86) (-18)/(-1)/(-19)+2
(87) 9*(-8)*(-6)/11
(88) 20*(-3)*(-5)+1
(89) (-18)-2+(-11)/20
(90) 15*1+4*17
(91) 1-10+(-14)/(-1)
(92) 10+(-4)*(-19)+(-12)
(93) 15/14/5*7
(94) 8+(-13)/3+1
(95) (-14)+6+(-2)*(-14)
(96) (-5)/(-13)/4+7
(97) (-15)/(-2)/(-12)+(-2)
(98) (-17)-(-20)-20*(-10)
(99) (-7)-10-13/3
(100) (-20)+(-18)+11+9
答案：
1 -18
2 103/6
3 -37
4 9
5 -43
6 -(20/3)
7 -(199/9)
8 54/7
9 17
10 2
11 -83
12 216
13 1021/91
14 27/7
15 -1741
16 73
17 127
18 -(2885/12)
19 842
20 5
21 214
22 -41
23 -(13/28)
24 -(51/10)
25 24
26 -(268/39)
27 39/5
28 -(372/19)
29 15/11
30 -(77/19)
31 -(29/2)
32 1716/17
33 -(117/4)
34 -17
35 25
36 2856
37 59/2
38 184
39 -(731/4)
40 587/3
41 23/4
42 -37
43 43680
44 -22
45 -(118/7)
46 -(192/17)
47 145/24
48 -12000
49 -(3/4)
50 -819
51 74
52 -21
53 89
54 205
55 -104
56 -(2/25)
57 161/19
58 -13520
59 -51
60 -45
61 137
62 -(133/3)
63 -321
64 -(13/456)
65 3/52
66 -(1297/72)
67 -(173/13)
68 -83
69 9
70 1092
71 5/2
72 -(372/5)
73 5
74 76/3
75 13
76 -1263
77 -(66/7)
78 -104
79 318
80 11/18
81 -(43/153)
82 53
83 231
84 115/11
85 -(77/6)
86 20/19
87 432/11
88 301
89 -(411/20)
90 83
91 5
92 74
93 3/2
94 14/3
95 20
96 369/52
97 -(21/8)
98 203
99 -(64/3)
100 -18
问题2：
1) 当{a=2, b=-4, c=-4}时,
((-6)*a)*(15*b)+((-9)*c)*((-13)*b)/(9*c)=___.
2) 当{a=-2, b=3, c=-1}时,
(14*c)-((-1)*b)+(3*c)/((-9)*c)*(15*a)=___.
3) 当{a=3, b=-1, c=4}时,
(7*a)-((-19)*a)+(1*b)*(19*c)*(6*c)=___.
4) 当{a=2, b=1, c=-2}时,
((-17)*c)*(13*a)-((-6)*b)/((-14)*a)/(14*a)=___.
5) 当{a=-4, b=-3, c=1}时,
(19*c)+(19*c)/(5*b)*(3*b)/((-16)*b)=___.
6) 当{a=-2, b=1, c=-4}时,
((-8)*c)*((-3)*a)*((-16)*c)*(6*a)/(20*b)=___.
7) 当{a=-2, b=-2, c=-4}时,
((-1)*b)/((-19)*c)*((-11)*b)-((-1)*a)/((-16)*b)=___.
8) 当{a=-4, b=-1, c=-3}时,
(1*a)-((-6)*a)+((-18)*b)-((-9)*a)/((-2)*a)=___.
9) 当{a=4, b=2, c=-3}时,
(9*a)-(14*b)-(8*c)*(4*c)*((-18)*b)=___.
10) 当{a=-4, b=2, c=-3}时,
(5*c)/((-18)*b)*(13*b)*(8*b)-((-19)*a)=___.
11) 当{a=-2, b=-2, c=-4}时,
(12*a)+((-17)*c)*(20*a)+((-20)*a)-((-4)*c)=___.
12) 当{a=4, b=-4, c=-3}时,
((-19)*a)*((-9)*c)+(5*b)*(10*a)-((-7)*b)=___.
13) 当{a=3, b=3, c=2}时,
((-17)*c)+((-15)*a)+((-6)*a)*(3*c)-(16*b)=___.
14) 当{a=-4, b=-2, c=-4}时,
(12*c)-(1*b)+(3*a)/((-12)*a)*(6*b)=___.
15) 当{a=2, b=-2, c=1}时,
(14*a)/(17*c)-((-15)*c)/((-7)*c)*(20*c)=___.
16) 当{a=1, b=-4, c=-4}时,
(4*b)-((-5)*a)/(5*a)-((-6)*b)+((-8)*a)=___.
17) 当{a=2, b=2, c=1}时,
((-7)*b)/((-20)*b)/(17*a)-(19*a)-((-12)*a)=___.
18) 当{a=3, b=-3, c=4}时,
(17*b)/(17*c)*(12*a)/(4*b)+((-15)*a)=___.
19) 当{a=-2, b=-1, c=4}时,
((-11)*c)*((-7)*b)+((-5)*a)/((-20)*a)-(7*c)=___.
20) 当{a=-1, b=3, c=1}时,
(7*a)*(19*c)+((-20)*c)+((-13)*b)*(3*b)=___.
21) 当{a=1, b=-1, c=4}时,
((-1)*b)/(15*a)/(8*b)/((-3)*c)-((-9)*a)=___.
22) 当{a=2, b=-4, c=1}时,
(6*a)*(15*a)+((-9)*b)*(6*a)*(12*c)=___.
23) 当{a=2, b=-4, c=-2}时,
(19*c)/(13*c)/(17*a)/(10*a)*(9*c)=___.
24) 当{a=-3, b=-1, c=4}时,
(14*a)-(3*c)+((-13)*a)/((-2)*b)/((-15)*c)=___.
25) 当{a=1, b=2, c=-4}时,
(9*a)*((-3)*b)*(5*c)/(18*c)*(6*b)=___.
26) 当{a=-1, b=-3, c=-2}时,
(14*a)+((-20)*c)-((-16)*b)/((-10)*a)+(16*b)=___.
27) 当{a=-1, b=-4, c=1}时,
(14*b)+((-2)*a)/(13*a)/(9*b)*((-8)*b)=___.
28) 当{a=-2, b=2, c=1}时,
((-10)*b)/((-3)*c)*((-16)*c)/(15*b)/(20*c)=___.
29) 当{a=2, b=4, c=2}时,
(16*c)*(2*b)/((-8)*b)-((-15)*c)*(1*c)=___.
30) 当{a=-3, b=-1, c=4}时,
(2*a)*(1*b)*(2*a)-((-7)*a)*((-14)*b)=___.
31) 当{a=1, b=-3, c=-2}时,
(12*c)/((-8)*c)+(19*a)*((-15)*c)+(6*a)=___.
32) 当{a=-3, b=2, c=3}时,
(19*a)*(16*c)-((-10)*a)+(6*a)*((-20)*c)=___.
33) 当{a=3, b=3, c=2}时,
(19*a)+(16*a)/(13*c)*(7*c)/((-10)*a)=___.
34) 当{a=4, b=2, c=3}时,
((-13)*a)-(8*b)*((-11)*b)-(11*c)*(19*a)=___.
35) 当{a=1, b=-1, c=-3}时,
(1*a)-(20*a)*(10*c)+(9*a)/(4*b)=___.
36) 当{a=-1, b=-4, c=-2}时,
((-19)*b)/((-13)*b)/(4*c)-((-3)*b)/((-5)*a)=___.
37) 当{a=-1, b=-1, c=3}时,
((-4)*a)-(13*b)+((-6)*b)-((-13)*b)-((-18)*a)=___.
38) 当{a=-2, b=2, c=1}时,
(10*b)+((-20)*a)+((-4)*c)*(1*c)+((-3)*a)=___.
39) 当{a=2, b=4, c=2}时,
(20*c)-((-16)*c)/(16*b)/((-7)*a)*(17*a)=___.
40) 当{a=2, b=2, c=3}时,
(5*b)+(18*b)/(4*b)/(14*a)/(16*c)=___.
41) 当{a=1, b=4, c=1}时,
(4*c)-((-20)*c)-((-10)*b)*((-14)*b)+((-1)*b)=___.
42) 当{a=-2, b=4, c=1}时,
((-10)*b)+((-8)*c)/((-15)*c)*(3*a)/((-11)*c)=___.
43) 当{a=-4, b=-1, c=-1}时,
((-3)*b)*((-3)*a)+((-17)*c)/(17*a)*((-19)*a)=___.
44) 当{a=-2, b=-4, c=-2}时,
(14*a)+(6*c)/((-13)*c)+((-15)*b)*((-5)*b)=___.
45) 当{a=2, b=-2, c=2}时,
((-13)*a)-((-20)*b)/((-3)*b)+(3*a)/((-5)*c)=___.
46) 当{a=3, b=-4, c=3}时,
(4*a)/((-11)*b)-((-11)*a)-((-6)*c)/(20*b)=___.
47) 当{a=4, b=-2, c=4}时,
(12*b)+((-14)*b)-(18*c)*((-7)*b)*((-3)*b)=___.
48) 当{a=-4, b=-3, c=-3}时,
((-13)*c)-(18*b)-(20*a)-((-1)*c)*((-20)*b)=___.
49) 当{a=-3, b=2, c=2}时,
((-4)*a)-(20*c)/(10*a)*(12*c)/((-8)*c)=___.
50) 当{a=1, b=-4, c=4}时,
(2*c)-(6*c)*((-6)*a)-((-13)*c)-((-15)*a)=___.
51) 当{a=-3, b=2, c=-4}时,
((-5)*b)*(11*a)+((-6)*b)+((-9)*c)*(12*a)=___.
52) 当{a=-1, b=-1, c=1}时,
(4*b)*((-15)*c)*((-6)*b)-((-19)*a)/((-15)*c)=___.
53) 当{a=4, b=-2, c=-2}时,
(13*a)-((-15)*c)+((-17)*c)/((-2)*a)-(17*a)=___.
54) 当{a=-3, b=1, c=-4}时,
(18*a)-((-16)*b)*(1*b)-((-8)*b)*((-15)*a)=___.
55) 当{a=-3, b=1, c=2}时,
(3*b)+(11*c)+(10*a)+(7*b)*((-16)*c)=___.
56) 当{a=1, b=-4, c=-2}时,
(4*a)/(3*a)*(5*a)+(11*a)/(6*c)=___.
57) 当{a=4, b=-4, c=-2}时,
(1*c)+((-2)*c)/((-2)*c)*(1*a)/(8*a)=___.
58) 当{a=-4, b=4, c=-1}时,
(9*c)*(11*c)*((-18)*b)+(8*b)*(4*b)=___.
59) 当{a=3, b=1, c=4}时,
(9*a)+((-8)*a)/(18*b)*(14*c)*(8*b)=___.
60) 当{a=-1, b=4, c=1}时,
(15*b)-((-14)*a)-((-11)*a)*((-12)*c)+(14*a)=___.
61) 当{a=2, b=-2, c=4}时,
(17*b)-(13*a)+(14*c)*(3*a)/((-16)*a)=___.
62) 当{a=2, b=-1, c=3}时,
((-13)*c)/((-2)*c)-(1*b)*(10*a)+((-16)*c)=___.
63) 当{a=-3, b=-1, c=-3}时,
(1*a)-(17*a)/((-19)*c)/((-8)*c)+(3*b)=___.