有理数加减混合运算10题有答案的

有理数加减混合运算10题有答案的
有理数加减混合运算10题有答案的

有理数加减混合运算10题有答案的
(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)
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

1)-5-9+3=-14+3=-11
(2)10-17+8=-7+8=1
(3)-3-4+19-11=-7+19-11=1
(4)-8+12-16-23=4-16-23=-12-23=-35
(5)-4.2+5.7-8.4+10=1.5-8.4+10=-6.9+10=3.1
(6)6.1-3.7-4.9+1.8=2.4-4.9+1.8=-2.5+1.8=-0...

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1)-5-9+3=-14+3=-11
(2)10-17+8=-7+8=1
(3)-3-4+19-11=-7+19-11=1
(4)-8+12-16-23=4-16-23=-12-23=-35
(5)-4.2+5.7-8.4+10=1.5-8.4+10=-6.9+10=3.1
(6)6.1-3.7-4.9+1.8=2.4-4.9+1.8=-2.5+1.8=-0.7
(7)1/3-2/3+1=-1/3+1=2/3
(8)-1/4+5/6+2/3-1/2=7/12+8/12-6/12=15/12-6/12=3/4
(9)(-36)-(-25)-(+36)+(+72)=-36+25-36+72=25
(10)(-8)-(-3)+(+5)-(+9)=-8+3+5-9=-9
(11)-1/2+(-1/6)-(-1/4)-(+2/3)=-6/12-2/12+3/12-8/12=-13/12
(12)-9+(-3|3/4)-3|3/4=-9-3|3/4-3|3/4=-12|3/4-3|3/4=-16|1/2
(13)12-(-18)+(-7)-15=12+18-7-15=8
(14)-40-28-(-19)+(-24)-(-32)=-40-28+19-24+32=-41

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