3个回答
2013-10-29
展开全部
[-|98|+76+(-87)]+23
[56+(-75)-7]-(8+4+3)
1) (+1)+(-21/2)+(-83/37)+(-9.5);
2) (+0.5)+(-13/4)+(-2.75)+(+11/2)
39+[-23]+0+[-16]= 0
[-18]+29+[-52]+60= 19
[-3]+[-2]+[-1]+0+1+2= -3
[-301]+125+301+[-75]= 50
[-26.54]+[-6.14]+18.54+6.14= -8
(-6-24.3)-(-12+9.1)+(0-2.1);
-40-28-(-19)+(-24)
22.54+(-4.4)+(-12.54)+4.4
-38)+52+118+(-62)=
(-32)+68+(-29)+(-68)=
(-21)+251+21+(-151)=
12+35+(-23)+0=
[8+(-5)]+(-4);
8+[(-5)+(-4)];
[(-7)+(-10)]+(-11);
(-7)+[(-10)+(-11)];
[(-22)+(-27)]+(+27);
(-22)+[(-27)+(+27)].
16+(-25)+24+(-32).
23+(-17)+6+(-22);
(-2)+3+1+(-3)+2+(-4);
(-7)+(-6.5)+(-3)+6.5.
(-8)+10+2+(-1);
5+(-6)+3+9+(-4)+(-7);
(-0.8)+1.2+(-0.7)+(-2.1)+0.8+3.5;
(-17)+59+(-37);
(-18.65)+(-6.15)+18.15+6.15;
12+7-5-30+2
[56+(-75)-7]-(8+4+3)
1) (+1)+(-21/2)+(-83/37)+(-9.5);
2) (+0.5)+(-13/4)+(-2.75)+(+11/2)
39+[-23]+0+[-16]= 0
[-18]+29+[-52]+60= 19
[-3]+[-2]+[-1]+0+1+2= -3
[-301]+125+301+[-75]= 50
[-26.54]+[-6.14]+18.54+6.14= -8
(-6-24.3)-(-12+9.1)+(0-2.1);
-40-28-(-19)+(-24)
22.54+(-4.4)+(-12.54)+4.4
-38)+52+118+(-62)=
(-32)+68+(-29)+(-68)=
(-21)+251+21+(-151)=
12+35+(-23)+0=
[8+(-5)]+(-4);
8+[(-5)+(-4)];
[(-7)+(-10)]+(-11);
(-7)+[(-10)+(-11)];
[(-22)+(-27)]+(+27);
(-22)+[(-27)+(+27)].
16+(-25)+24+(-32).
23+(-17)+6+(-22);
(-2)+3+1+(-3)+2+(-4);
(-7)+(-6.5)+(-3)+6.5.
(-8)+10+2+(-1);
5+(-6)+3+9+(-4)+(-7);
(-0.8)+1.2+(-0.7)+(-2.1)+0.8+3.5;
(-17)+59+(-37);
(-18.65)+(-6.15)+18.15+6.15;
12+7-5-30+2
2013-10-29
展开全部
1.12+7-5-30+2
2.(-1/3)-(+1/2)+(-3/4)-(-2/3);
3.(-1.5)+1.4-(-3.6)-4.3+(-5.2)-(+1).
4.(-6)-(-7)+(-5)-(+9) 30.
计算下列各题:
(1)[8+(-5)]+(-4); (2)8+[(-5)+(-4)]; (3)[(-7)+(-10)]+(-11);
(4)(-7)+[(-10)+(-11)]; (5)[(-22)+(-27)]+(+27);
(6)(-22)+[(-27)+(+27)].
计算16+(-25)+24+(-32).
计算:
(1)23+(-17)+6+(-22); (2)(-2)+3+1+(-3)+2+(-4);
(3)(-7)+(-6.5)+(-3)+6.5.
(4)(-8)+10+2+(-1); (5)5+(-6)+3+9+(-4)+(-7);
(6)(-0.8)+1.2+(-0.7)+(-2.1)+0.8+3.5;
(7)(-17)+59+(-37); (8)(-18.65)+(-6.15)+18.15+6.15;
1.12+7-5-30+2
2.(-1/3)-(+1/2)+(-3/4)-(-2/3);
3.(-1.5)+1.4-(-3.6)-4.3+(-5.2)-(+1)
4. (一3)+(+6)+(一4)+(一7)+(+5).
5.(-5)+(-9) (-17)+21 45+(-23) (-45)+23
(-29)+(-31) (-13)+0 (-39)+(-45)
(1)5+(-22); (2)(-1.3)+(-8)
(3)(-0.9)+1.5; (4)2.7+(-3.5)
2.(-1/3)-(+1/2)+(-3/4)-(-2/3);
3.(-1.5)+1.4-(-3.6)-4.3+(-5.2)-(+1).
4.(-6)-(-7)+(-5)-(+9) 30.
计算下列各题:
(1)[8+(-5)]+(-4); (2)8+[(-5)+(-4)]; (3)[(-7)+(-10)]+(-11);
(4)(-7)+[(-10)+(-11)]; (5)[(-22)+(-27)]+(+27);
(6)(-22)+[(-27)+(+27)].
计算16+(-25)+24+(-32).
计算:
(1)23+(-17)+6+(-22); (2)(-2)+3+1+(-3)+2+(-4);
(3)(-7)+(-6.5)+(-3)+6.5.
(4)(-8)+10+2+(-1); (5)5+(-6)+3+9+(-4)+(-7);
(6)(-0.8)+1.2+(-0.7)+(-2.1)+0.8+3.5;
(7)(-17)+59+(-37); (8)(-18.65)+(-6.15)+18.15+6.15;
1.12+7-5-30+2
2.(-1/3)-(+1/2)+(-3/4)-(-2/3);
3.(-1.5)+1.4-(-3.6)-4.3+(-5.2)-(+1)
4. (一3)+(+6)+(一4)+(一7)+(+5).
5.(-5)+(-9) (-17)+21 45+(-23) (-45)+23
(-29)+(-31) (-13)+0 (-39)+(-45)
(1)5+(-22); (2)(-1.3)+(-8)
(3)(-0.9)+1.5; (4)2.7+(-3.5)
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2013-10-29
展开全部
(-38)+52+118+(-62)=
(-32)+68+(-29)+(-68)=
(-21)+251+21+(-151)=
12+35+(-23)+0=
[-|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
(-32)+68+(-29)+(-68)=
(-21)+251+21+(-151)=
12+35+(-23)+0=
[-|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
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