初一上册数学有理数混合运算80道（加减乘除均可） 初一有理数混合运算80道(带答案)
\u521d\u4e2d\u4e0a\u5b66\u671f\u6709\u7406\u6570\u52a0\u51cf\u4e58\u9664\u6df7\u5408\u8fd0\u7b97\uff0880\u9053\uff09\u4f60\u662f\u5c39\u5bb6\u52a1\u4e2d\u5b66\u7684\u5417\uff1f
1\uff09-23\u00f71 \u00d7\uff08-1 \uff092\u00f7\uff081 \uff092\uff1b
\uff082\uff09-14-\uff082-0.5\uff09\u00d7 \u00d7[( )2-( )3];
\uff083\uff09-1 \u00d7[1-3\u00d7(- )2]-( )2\u00d7(-2)3\u00f7(- )3
\uff084\uff09(0.12+0.32) \u00f7 [-22+(-3)2-3 \u00d7 ];
(5)-6.24\u00d732+31.2\u00d7(-2)3+(-0.51) \u00d7624.
[-|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
75\u00f7\u3014138\u00f7\uff08100-54\uff09\u3015 85\u00d7(95\uff0d1440\u00f724)
80400\uff0d(4300\uff0b870\u00f715) 240\u00d778\u00f7\uff08154-115\uff09
1437\u00d727\uff0b27\u00d7563 \u301475-\uff0812+18\uff09\u3015\u00f715
2160\u00f7\u3014\uff0883-79\uff09\u00d718\u3015 280\uff0b840\u00f724\u00d75
325\u00f713\u00d7(266\uff0d250) 85\u00d7(95\uff0d1440\u00f724)
58870\u00f7(105\uff0b20\u00d72) 1437\u00d727\uff0b27\u00d7563
81432\u00f7(13\u00d752\uff0b78) [37.85-\uff087.85+6.4\uff09] \u00d730
156\u00d7[(17.7-7.2)\u00f73] \uff08947\uff0d599\uff09\uff0b76\u00d764
36\u00d7(913\uff0d276\u00f723) [192\uff0d\uff0854\uff0b38\uff09]\u00d767
[\uff087.1-5.6\uff09\u00d70.9-1.15]\u00f72.5 81432\u00f7(13\u00d752\uff0b78)
5.4\u00f7[2.6\u00d7\uff083.7-2.9\uff09+0.62] \uff08947\uff0d599\uff09\uff0b76\u00d764 60\uff0d(9.5\uff0b28.9)]\u00f70.18 2.881\u00f70.43\uff0d0.24\u00d73.5 20\u00d7[(2.44\uff0d1.8)\u00f70.4\uff0b0.15] 28-(3.4 1.25\u00d72.4) 0.8\u00d7\u301415.5-(3.21 5.79)\u3015 \uff0831.8 3.2\u00d74\uff09\u00f75 194\uff0d64.8\u00f71.8\u00d70.9 36.72\u00f74.25\u00d79.9 3.416\u00f7\uff080.016\u00d735\uff09 0.8\u00d7[(10\uff0d6.76)\u00f71.2]
\uff08136+64\uff09\u00d7\uff0865-345\u00f723\uff09 (6.8-6.8\u00d70.55)\u00f78.5
0.12\u00d7 4.8\u00f70.12\u00d74.8 \uff0858+37\uff09\u00f7\uff0864-9\u00d75\uff09
812-700\u00f7\uff089+31\u00d711\uff09 \uff083.2\u00d71.5+2.5\uff09\u00f71.6
85+14\u00d7\uff0814+208\u00f726\uff09 120-36\u00d74\u00f718+35
\uff08284+16\uff09\u00d7\uff08512-8208\u00f718\uff09 9.72\u00d71.6-18.305\u00f77
4/7\u00f7[1/3\u00d7\uff083/5-3/10\uff09] \uff084/5+1/4\uff09\u00f77/3+7/10
12.78\uff0d0\u00f7\uff08 13.4\uff0b156.6 \uff09 37.812-700\u00f7\uff089+31\u00d711\uff09 \uff08136+64\uff09\u00d7\uff0865-345\u00f723\uff09 3.2\u00d7\uff081.5+2.5\uff09\u00f71.6
85+14\u00d7\uff0814+208\u00f726\uff09 \uff0858+37\uff09\u00f7\uff0864-9\u00d75\uff09
(6.8-6.8\u00d70.55)\u00f78.5 \uff08284+16\uff09\u00d7\uff08512-8208\u00f718\uff09
0.12\u00d7 4.8\u00f70.12\u00d74.8 \uff083.2\u00d71.5+2.5\uff09\u00f71.6
120-36\u00d74\u00f718+35 10.15-10.75\u00d70.4-5.7
5.8\u00d7\uff083.87-0.13\uff09+4.2\u00d73.74 347+45\u00d72-4160\u00f752
32.52-\uff086+9.728\u00f73.2\uff09\u00d72.5 87\uff0858+37\uff09\u00f7\uff0864-9\u00d75\uff09
[\uff087.1-5.6\uff09\u00d70.9-1.15] \u00f72.5 \uff083.2\u00d71.5+2.5\uff09\u00f71.6
5.4\u00f7[2.6\u00d7\uff083.7-2.9\uff09+0.62] 12\u00d76\u00f7\uff0812-7.2\uff09-6
3.2\u00d76+\uff081.5+2.5\uff09\u00f71.6 \uff083.2\u00d71.5+2.5\uff09\u00f71.6
5.8\u00d7\uff083.87-0.13\uff09+4.2\u00d73.74
33.02\uff0d\uff08148.4\uff0d90.85\uff09\u00f72.5
(\u4e00)\u8ba1\u7b97\u9898:
(1)23+(-73)
(2)(-84)+(-49)
(3)7+(-2.04)
(4)4.23+(-7.57)
(5)(-7/3)+(-7/6)
(6)9/4+(-3/2)
(7)3.75+(2.25)+5/4
(8)-3.75+(+5/4)+(-1.5)
(9)(-17/4)+(-10/3)+(+13/3)+(11/3)
(10)(-1.8)+(+0.2)+(-1.7)+(0.1)+(+1.8)+(+1.4)
(11)(+1.3)-(+17/7)
(12)(-2)-(+2/3)
(13)|(-7.2)-(-6.3)+(1.1)|
(14)|(-5/4)-(-3/4)|-|1-5/4-|-3/4|)
(15)(-2/199)*(-7/6-3/2+8/3)
(16)4a)*(-3b)*(5c)*1/6
1. 3/7 \u00d7 49/9 - 4/3
2. 8/9 \u00d7 15/36 + 1/27
3. 12\u00d7 5/6 \u2013 2/9 \u00d73
4. 8\u00d7 5/4 + 1/4
5. 6\u00f7 3/8 \u2013 3/8 \u00f76
6. 4/7 \u00d7 5/9 + 3/7 \u00d7 5/9
7. 5/2 -\uff08 3/2 + 4/5 \uff09
8. 7/8 + \uff08 1/8 + 1/9 \uff09
9. 9 \u00d7 5/6 + 5/6
10. 3/4 \u00d7 8/9 - 1/3
0.12\u03c7\uff0b1.8\u00d70.9=7.2 (9\uff0d5\u03c7)\u00d70.3=1.02 6.4\u03c7-\u03c7=28+4.4
11. 7 \u00d7 5/49 + 3/14
12. 6 \u00d7\uff08 1/2 + 2/3 \uff09
13. 8 \u00d7 4/5 + 8 \u00d7 11/5
14. 31 \u00d7 5/6 \u2013 5/6
15. 9/7 - \uff08 2/7 \u2013 10/21 \uff09
16. 5/9 \u00d7 18 \u2013 14 \u00d7 2/7
17. 4/5 \u00d7 25/16 + 2/3 \u00d7 3/4
18. 14 \u00d7 8/7 \u2013 5/6 \u00d7 12/15
19. 17/32 \u2013 3/4 \u00d7 9/24
20. 3 \u00d7 2/9 + 1/3
21. 5/7 \u00d7 3/25 + 3/7
22. 3/14 \u00d7\u00d7 2/3 + 1/6
23. 1/5 \u00d7 2/3 + 5/6
24. 9/22 + 1/11 \u00f7 1/2
25. 5/3 \u00d7 11/5 + 4/3
26. 45 \u00d7 2/3 + 1/3 \u00d7 15
27. 7/19 + 12/19 \u00d7 5/6
28. 1/4 + 3/4 \u00f7 2/3
29. 8/7 \u00d7 21/16 + 1/2
30. 101 \u00d7 1/5 \u2013 1/5 \u00d7 21
31.50\uff0b160\u00f740 \uff0858+370\uff09\u00f7\uff0864-45\uff09
32.120-144\u00f718+35
33.347+45\u00d72-4160\u00f752
34\uff0858+37\uff09\u00f7\uff0864-9\u00d75\uff09
35.95\u00f7\uff0864-45\uff09
36.178-145\u00f75\u00d76+42 420+580-64\u00d721\u00f728
37.812-700\u00f7\uff089+31\u00d711\uff09 \uff08136+64\uff09\u00d7\uff0865-345\u00f723\uff09
38.85+14\u00d7\uff0814+208\u00f726\uff09
39.\uff08284+16\uff09\u00d7\uff08512-8208\u00f718\uff09
40.120-36\u00d74\u00f718+35
41.\uff0858+37\uff09\u00f7\uff0864-9\u00d75\uff09
42.(6.8-6.8\u00d70.55)\u00f78.5
43.0.12\u00d7 4.8\u00f70.12\u00d74.8
44.\uff083.2\u00d71.5+2.5\uff09\u00f71.6 \uff082\uff093.2\u00d7\uff081.5+2.5\uff09\u00f71.6
45.6-1.6\u00f74= 5.38+7.85-5.37=
46.7.2\u00f70.8-1.2\u00d75= 6-1.19\u00d73-0.43=
47.6.5\u00d7\uff084.8-1.2\u00d74\uff09= 0.68\u00d71.9+0.32\u00d71.9
48.10.15-10.75\u00d70.4-5.7
49.5.8\u00d7\uff083.87-0.13\uff09+4.2\u00d73.74
50.32.52-\uff086+9.728\u00f73.2\uff09\u00d72.5
51.-5+58+13+90+78-(-56)+50
52.-7*2-57/(3
53.(-7)*2/(1/3)+79/(3+6/4\uff09
54.123+456+789+98/(-4)
55.369/33-(-54-31/15.5)
56.39+{3x[42/2x(3x8)]}
57.9x8x7/5x(4+6)
58.11x22/(4+12/2)
59.94+(-60)/10
[-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练习一(B级)
(一)计算题:
(1)23+(-73)
(2)(-84)+(-49)
(3)7+(-2.04)
(4)4.23+(-7.57)
(5)(-7/3)+(-7/6)
(6)9/4+(-3/2)
(7)3.75+(2.25)+5/4
(8)-3.75+(+5/4)+(-1.5)
(二)用简便方法计算:
(1)(-17/4)+(-10/3)+(+13/3)+(11/3)
(2)(-1.8)+(+0.2)+(-1.7)+(0.1)+(+1.8)+(+1.4)
(三)已知:X=+17(3/4),Y=-9(5/11),Z=-2.25,
求:(-X)+(-Y)+Z的值
(四)用“>“,“0,则a-ba (C)若ba (D)若a<0,ba
(二)填空题:
(1)零减去a的相反数,其结果是_____________; (2)若a-b>a,则b是_____________数; (3)从-3.14中减去-π,其差应为____________; (4)被减数是-12(4/5),差是4.2,则减数应是_____________; (5)若b-a<-,则a,b的关系是___________,若a-b<0,则a,b的关系是______________; (6)(+22/3)-( )=-7
(三)判断题:
(1)一个数减去一个负数,差比被减数小. (2)一个数减去一个正数,差比被减数小. (3)0减去任何数,所得的差总等于这个数的相反数. (4)若X+(-Y)=Z,则X=Y+Z (5)若a<0,b|b|,则a-b>0
练习二(B级)
(一)计算:
(1)(+1.3)-(+17/7)
(2)(-2)-(+2/3)
(3)|(-7.2)-(-6.3)+(1.1)|
(4)|(-5/4)-(-3/4)|-|1-5/4-|-3/4|)
(二)如果|a|=4,|b|=2,且|a+b|=a+b,求a-b的值.
(三)若a,b为有理数,且|a|<|b|试比较|a-b|和|a|-|b|的大小
(四)如果|X-1|=4,求X,并在数轴上观察表示数X的点与表示1的点的距离.
练习三(A级)
(一)选择题:
(1)式子-40-28+19-24+32的正确读法是( )
(A)负40,负28,加19,减24与32的和 (B)负40减负28加19减负24加32 (C)负40减28加19减24加32 (D)负40负28加19减24减负32
(2)若有理数a+b+C<0,则( )
(A)三个数中最少有两个是负数 (B)三个数中有且只有一个负数 (C)三个数中最少有一个是负数 (D)三个数中有两个是正数或者有两个是负数
(3)若m<0,则m和它的相反数的差的绝对值是( )
(A)0 (B)m (C)2m (D)-2m
(4)下列各式中与X-y-Z诉值不相等的是( )
(A)X-(Y-Z) (B)X-(Y+Z) (C)(X-y)+(-z) (D)(-y)+(X-Z)
(二)填空题:
(1)有理数的加减混合运算的一般步骤是:(1)________;(2)_________;(3)________ _______;(4)__________________. (2)当b0,(a+b)(a-1)>0,则必有( ) (A)b与a同号 (B)a+b与a-1同号 (C)a>1 (D)b1 (6)一个有理数和它的相反数的积( ) (A)符号必为正 (B)符号必为负 (C)一不小于零 (D)一定不大于零 (7)若|a-1|*|b+1|=0,则a,b的值( ) (A)a=1,b不可能为-1 (B)b=-1,a不可能为1 (C)a=1或b=1 (D)a与b的值相等 (8)若a*B*C=0,则这三个有理数中( ) (A)至少有一个为零 (B)三个都是零 (C)只有一个为零 (D)不可能有两个以上为零
(二)填空题:
(1)有理数乘法法则是:两数相乘,同号__________,异号_______________,并把绝对值_____, 任何数同零相乘都得__________________. (2)若四个有理数a,b,c,d之积是正数,则a,b,c,d中负数的个数可能是______________; (3)计算(-2/199)*(-7/6-3/2+8/3)=________________; (4)计算:(4a)*(-3b)*(5c)*1/6=__________________; (5)计算:(-8)*(1/2-1/4+2)=-4-2+16=10的错误是___________________; (6)计算:(-1/6)*(-6)*(10/7)*(-7/10)=[(-1/6)*(-6)][(+10/7)*(-7/10)]=-1的根据是_______
(三)判断题:
(1)两数之积为正,那么这两数一定都是正数; (2)两数之积为负,那么这两个数异号; (3)几个有理数相乘,当因数有偶数个时,积为正; (4)几个有理数相乘,当积为负数时,负因数有奇数个; (5)积比每个因数都大.
练习(四)(B级)
(一)计算题:
(1)(-4)(+6)(-7)
(2)(-27)(-25)(-3)(-4)
(3)0.001*(-0.1)*(1.1)
(4)24*(-5/4)*(-12/15)*(-0.12)
(5)(-3/2)(-4/3)(-5/4)(-6/5)(-7/6)(-8/7)
(6)(-24/7)(11/8+7/3-3.75)*24
(二)用简便方法计算:
(1)(-71/8)*(-23)-23*(-73/8)
(2)(-7/15)*(-18)*(-45/14)
(3)(-2.2)*(+1.5)*(-7/11)*(-2/7)
(三)当a=-4,b=-3,c=-2,d=-1时,求代数式(ab+cd)(ab-cd)的值.
(四)已知1+2+3+......+31+32+33=17*33,计算下式
1-3+2-6+3-9-12+...+31-93+32-96+33-99的值
练习五(A级)
(一)选择题:
(1)已知a,b是两个有理数,如果它们的商a/b=0,那么( )
(A)a=0且b≠0 (B)a=0 (C)a=0或b=0 (D)a=0或b≠0
(2)下列给定四组数1和1;-1和-1;0和0;-2/3和-3/2,其中互为倒数的是( )
(A)只有 (B)只有 (C)只有 (D)都是
(3)如果a/|b|(b≠0)是正整数,则( )
(A)|b|是a的约数 (B)|b|是a的倍数 (C)a与b同号 (D)a与b异号
(4)如果a>b,那么一定有( )
(A)a+b>a (B)a-b>a (C)2a>ab (D)a/b>1
(二)填空题:
(1)当|a|/a=1时,a______________0;当|a|/a=-1时,a______________0;(填>,0,则a___________0; (11)若ab/c0,则b___________0; (12)若a/b>0,b/c(-0.3)4>-106 (B)(-0.3)4>-106>(-0.2)3 (C)-106>(-0.2)3>(-0.3)4 (D)(-0.3)4>(-0.2)3>-106 (4)若a为有理数,且a2>a,则a的取值范围是( ) (A)a<0 (B)0<1 (C)a1 (D)a>1或a<0 (5)下面用科学记数法表示106000,其中正确的是( ) (A)1.06*105 (B)10.6*105 (C)1.06*106 (D)0.106*107 (6)已知1.2363=1.888,则123.63等于( ) (A)1888 (B)18880 (C)188800 (D)1888000 (7)若a是有理数,下列各式总能成立的是( ) (A)(-a)4=a4 (B)(-a)3=A4 (C)-a4=(-a)4 (D)-a3=a3 (8)计算:(-1)1-(-2)2-(-3)3-(-4)4所得结果是( ) (A)288 (B)-288 (C)-234 (D)280
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绛旓細(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 鏈夌悊鏁鐨勫姞鍑娣峰悎杩愮畻鏈涢噰绾 ...
绛旓細a^3-2b^3+ab(2a-b)=a^3+2a^2b-2b^3-ab^2 =a^2(a+2b)-b^2(2b+a)=(a+2b)(a^2-b^2)=(a+2b)(a+b)(a-b)2.(x^2+y^2)^2-4y(x^2+y^2)+4y^2 =(x^2+y^2-2y)^2 3.(x^2+2x)^2+3(x^2+2x)+x^2+2x+3 =(x^2+2x)^2+4(x^2+2x)+3 =(x^2+...
绛旓細(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*(...
绛旓細2011-3-17 鎴戣鍒濅竴鐨150閬撹绠楅銆60閬撴柟绋嬨60閬撴暣寮忚绠椼30閬鏈夌悊鏁版贩鍚堣繍绠 16 2007-11-4 鎴戞ラ渶鍒濅竴鐨勬湁鐞嗘暟娣峰悎杩愮畻,涔樻柟绠楀紡,璋佹湁鍟? 2010-10-7 鍒濅竴鎵30閬鏁板璁＄畻棰樸(鏈夌悊鏁版贩鍚堣繍绠) 涓嶈绛旀,鍙棰樼洰灏辫鍟!... 13 鏇村鍏充簬70閬撴湁鐞嗘暟鍔犲噺涔橀櫎涔樻柟娣峰悎杩愮畻鐨勯鐨勯棶棰>> 鏌ョ湅鍚屼富棰...
绛旓細鍒濅竴鏁板鏈夌悊鏁鐨娣峰悎杩愮畻缁冧範 缁冧範涓(B绾) (涓)璁＄畻棰: (1)23+(-73) (2)(-84)+(-49) (3)7+(-2.04) (4)4.23+(-7.57) (5)(-7/3)+(-7/6) (6)9/4+(-3/2) (7)3.75+(2.25)+5/4 (8)-3.75+(+5/4)+(-1.5) (浜)鐢ㄧ畝渚挎柟娉曡绠: (1)(-17/4)+(-10/3)+(+13/3)+(11...
绛旓細|141/111-141/99|+|141/111-42/99|=141/99-141/111+141/111-42/99=1 |-6鍙3/8+2鍙1/2|+锛-8鍙7/8锛+|-3-1/2|=31/8-71/8+7/2 =-5+7/2 =-3/2
绛旓細3.鍦ㄥ甫鏈夋嫭鍙风殑杩愮畻涓,鍏堢畻灏忔嫭鍙,鍐嶇畻涓嫭鍙,鏈鍚庣畻澶ф嫭鍙. 璇惧爞缁冧範 璁＄畻: 涓夈佸皬缁 鏁欏笀寮曞瀛︾敓涓璧锋荤粨鏈夌悊鏁版贩鍚堣繍绠鐨勮寰. 1.鍏堜箻鏂,鍐嶄箻闄,鏈鍚庡姞鍑; 2.鍚岀骇杩愮畻浠庡乏鍒板彸鎸夐『搴忚繍绠; 3.鑻ユ湁鎷彿,鍏堝皬鍐嶄腑鏈鍚庡ぇ,渚濇璁＄畻. 鍥涖佷綔涓 1.璁＄畻: 2.璁＄畻: (1)-8+4梅(-2); (2)6-(-12)...
绛旓細[-|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...
绛旓細48銆佸凡鐭ワ綔a锝=3,b鐨勭浉鍙嶆暟涓-5锛屾眰a-b鐨勫笺49銆佸綋 鏃讹紝姹(2k2-4k-1)梅(k2+k+1)鐨勫笺50銆佸凡鐭>0锛宎b<0锛屽寲绠锝渁-b+4锝-锝渂-a-3锝溿鍒濅竴鏁板鏈夌悊鏁鐨娣峰悎杩愮畻缁冧範 銆愬悓姝ヨ揪绾茬粌涔犮戯紙鏃堕棿45鍒嗛挓锛屾弧鍒100鍒嗭級1锛庤绠楅锛氾紙10鈥裁5=50鈥诧級锛1锛3锛28-4锛76+1 - 锛涳紙...
绛旓細鏈夌悊鏁鐨勫姞鍑娣峰悎杩愮畻 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...
