60道有理数加减计算题及答案

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/06 07:34:54
60道有理数加减计算题及答案
xTn1ZcUG >EЦ! I$AAAA4{Tk$ PE7{3;}wśW/ׇg'g>_\|>Z-=jw6˦!V  rșuCSSLKbe >jC +  6HuAl-p%S: j FĽ8GgP% Ź

60道有理数加减计算题及答案
60道有理数加减计算题及答案

60道有理数加减计算题及答案
1.(-8)-(-1)=(-8)+1=-7
2.45+(-30)=45-30=15
3.-1.5-(-11.5)=-1.5+11.5=10
4.-1/4-(-1/2)=-1/4+1/2=-1/4+2/4=1/4
5.15-[1-(20-4)]15-(1-16)=15-(-15)=15+15=30
6.-40-28-(-19)+(-24)=-40-28+19-24=-73
7.22.54+(-4.4)+(-12.54)+4.4=22.54-4.4-12.54+4.4=10
8.(2/3-1/2)-(1/3-5/6)=(4/6-3/6)-(2/6-5/6)=1/6-(-3/6)=1/6+3/6=4/6=2/3 [-|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
-1-23.33-(+76.76);
1-2*2*2*2;
(-6-24.3)-(-12+9.1)+(0-2.1);
-1+8-7
-20+(-14)+(-2)+19
66+(-21)-(-21)+15
41-6+(-51)
-9+2-3
1/7+5/6+(-1/7)
13+(-5)+(-6)+(+34)
-5+6+9-7
1/8+(-1/4)+(-6)
-17+8+9+(-14)
25+(-18)+(-17)+(-22)
5^2+(-2)^3-15+6/3-2*2.5

1.(-8)-(-1)=(-8)+1=-7
2.45+(-30)=45-30=15
3.-1.5-(-11.5)=-1.5+11.5=10
4.-1/4-(-1/2)=-1/4+1/2=-1/4+2/4=1/4
5.15-[1-(20-4)]15-(1-16)=15-(-15)=15+15=30
6.-40-28-(-19)+(-24)=-40-2...

全部展开

1.(-8)-(-1)=(-8)+1=-7
2.45+(-30)=45-30=15
3.-1.5-(-11.5)=-1.5+11.5=10
4.-1/4-(-1/2)=-1/4+1/2=-1/4+2/4=1/4
5.15-[1-(20-4)]15-(1-16)=15-(-15)=15+15=30
6.-40-28-(-19)+(-24)=-40-28+19-24=-73
7.22.54+(-4.4)+(-12.54)+4.4=22.54-4.4-12.54+4.4=10
8.(2/3-1/2)-(1/3-5/6)=(4/6-3/6)-(2/6-5/6)=1/6-(-3/6)=1/6+3/6=4/6=2/3 [-|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
-1-23.33-(+76.76);
1-2*2*2*2;
(-6-24.3)-(-12+9.1)+(0-2.1);
-1+8-7
-20+(-14)+(-2)+19
66+(-21)-(-21)+15
41-6+(-51)
-9+2-3
1/7+5/6+(-1/7)
13+(-5)+(-6)+(+34)
-5+6+9-7
1/8+(-1/4)+(-6)
-17+8+9+(-14)
25+(-18)+(-17)+(-22)
5^2+(-2)^3-15+6/3-2*2.5

收起