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跪求30道有理数加减乘除计算带过程急!!!!

答案:2  悬赏:70  手机版
解决时间 2021-02-24 07:50
  • 提问者网友:送舟行
  • 2021-02-23 20:35
跪求30道有理数加减乘除计算带过程急!!!!
最佳答案
  • 五星知识达人网友:傲气稳了全场
  • 2021-02-23 21:20
3+2^2×(-1/5)
解:原式=3+4×(-1/5)
=3-4/5
=11/5

18-6÷(-2)×(-1/3)
解:原式=18-(-3)×(-1/3)
=18-1
=17

(-3)^2×[-2/3+(-5/9)]
解:原式=9×(-11/9)
=-11

8+(-3)^2×(-2)
解:原式=8+9×(-2)
=8-18
=-10

100÷(-2)^2-(-2)÷(-2/3)
解:原式=100÷4-3
=25-3
=22

36×(1/2-1/3)^2
解:原式=36×(1/6)^2
=36×(1/36)
=1

12.7÷(-8/19)×0
解:原式=0

4×(-3)^2+6
解:原式=4×9+6
=36+6
=42

(-3/4)×(-8+2/3-1/3)
解:原式=(-3/4)×(-8+1/3)
=(-3/4)×(-23/3)
=23/4

(-2)^3-13÷(-1/2)
解:原式=(-8)-(-26)
=18

0-2^3÷(-4)^3-1/8
解:原式=0-8÷(-64)-1/8
=0+1/8-1/8
=0

(-2)^3×0.5-(-1.6)^2÷(-2)^2
解:原式=(-8)×(1/2)-(-8/5)^2÷4
=(-4)-(64/25)÷4
=(-4)-16/25
=-116/25

(-3/2)×[(-2/3)^2-2]
解:原式=(-3/2)×(4/9-2)
=(-3/2)×(-14/9)
=7/3

[(-3)^2-(-5)^2]÷(-2)
解:原式=(9-25)÷(-2)
=(-16)÷(-2)
=8

16÷(-2)^3-(-1/8)×(-4)
解:原式=16÷(-8)-1/2
=-2-1/2
=-5/2

2×(-5)+2^2-3÷1/2
解:原式=-10+4-3×2
=-10+4-6
=-12.

17-2^3÷(-2)×3
解:原式=17-8÷(-2)×3,
=17-(-4)×3,
=17+12,
=29.

(-1/2)^0+(-2)^3+(1/3)^-1+|-2|
解:原式=1-8+3+2
=-2.

(-2)^3÷(-1-3)-(1/2)^(-1)+(3.14-π)^0
解:原式=-8÷(-4)-2+1
=2-2+1
=1.

-3^4+(-0.25)^100×4^100+(1/2-1/3)×(1/6)^-2÷|-2|
解:原式=-81+1+1/6 ×36×1/2
=-81+1+3
=-77

2^2+4×(-1/2)
解:原式=4-2=2

(-2)^3+|-7|-3^0
解:原式=-8+7-1
=-2

-1^100-(1-0.5)×1/3×[3-(-3)^2]
解:原式=-1-1/2 ×1/3 ×(-6)
=-1+1
=0

-1^4-1/6×[2-(-3)^2]
解:原式=-1-1/6 ×(2-9)
=-1-1/6 ×(-7)
=-1+7/6
=1/6

-12+8÷(-2)^3-(-5)×(-3)
解:原式=-12+8÷(-8)-15
=-12+(-1)-15
=-28

(-24)×(1/8-1/3+1/4)+(-2)^3
解:原式=-3+8-6-8=-9

-1^4-(1-0.5)×1/3×[1-(-3)^2]
解:原式=-1-1/2 ×1/3 ×(1-9)
=-1+1/2 ×1/3 ×8
=-1+4/3
=1/3

(3/4-7/8+5/12)×(-24);
解:原式=-3/4 ×24+7/8 ×24-5/12 ×24
=-18+21-10
=-7

-1^4-1/6×[2+(-4)^2]
解:原式=-1-1/6 ×(2+16)=-1-3=-4
全部回答
  • 1楼网友:罪歌
  • 2021-02-23 21:57
-38)+52+118+(-62)= (-32)+68+(-29)+(-68)= (-21)+251+21+(-151)= 12+35+(-23)+0= (-6)+8+(-4)+12 = 27+(-26)+33+(-27) 12+35+(-23)+0= 39+[-23]+0+[-16]= [-18]+29+[-52]+60= [-3]+[-2]+[-1]+0+1+2= [-301]+125+301+[-75]= [-1]+[-1/2]+[+3/4]+[-1/4]= [-7/2]+[+5/6]+[-0.5]+4/5+19/6= [-26.54]+[-6.14]+18.54+6.14= 1.125+[-17/5]+[-1/8]+[-0.6]= 1-4/9 = 1-7/10= 8/15-5= 7-15= 2/8-5/8= 8/27-5 = 4-27 = 11/12-10/12= 16/21-1/7 = 4/ 2-(3+3 )= 1/3- 7/12-7/18= 1 -1/3-1 1/5 = 10-7/10= 5/24+3/8 = 4.5-3/5 1-3/5=2/5 4.39*1/13*2/3 1+(-2)+(-3)+4+5+(-6)+(-7)+8+9+(-10)+(-11)+12 -15.8+13又6分之5+15又5分之4 (-7分之1)+(-7分之2)+1又7分之3 -0.5-(-3 )+2.75-(+7 ) 39+[-23]+0+[-16]= [-18]+29+[-52]+60= [-3]+[-2]+[-1]+0+1+2= [-301]+125+301+[-75]= [-1]+[-1/2]+[+3/4]+[-1/4]= [-7/2]+[+5/6]+[-0.5]+4/5+19/6= [-26.54]+[-6.14]+18.54+6.14= 1.125+[-17/5]+[-1/8]+[-0.6]= 0.75+[-11/4]+0.125+12又5/7+[-3/8]= [-4/9]+[-3/5]+[+11/8]+[+5/9]+[-1/8]+[-0.4]=(-32)+68+(-29)+(-68)= (-21)+251+21+(-151)= 12+35+(-23)+0= (-6)+8+(-4)+12 = 27+(-26)+33+(-27) 12+35+(-23)+0= 39+[-23]+0+[-16]= [-18]+29+[-52]+60= [-3]+[-2]+[-1]+0+1+2= [-301]+125+301+[-75]= [-1]+[-1/2]+[+3/4]+[-1/4]= [-7/2]+[+5/6]+[-0.5]+4/5+19/6= [-26.54]+[-6.14]+18.54+6.14= 125+[-17/5]+[-1/8]+[-0.6]= 1-4/9 = 1-7/10= 8/15-5= 7-15= 2/8-5/8= 8/27-5 = 4-27 = 11/12-10/12= 16/21-1/7 = 4/ 2-(3+3 )= 1/3- 7/12-7/18= 1 -1/3-1 1/5 = 10-7/10= 5/24+3/8 = 回答者: 陆娅雯 | 二级 | 2011-6-11 18:48 -35-36+48 65-98-6 -875-69 96-69-3 -984-69+69 36-96 36-69-69 32-69 36-96 -584-96 -985-69+69 6974-9647+69 396-963+987 -9632+963-987 -3698+963-74 96-987 965-9872 -6985+69-98 -9632+98-698 -698+69-325-98+69 -9865+963-987+369 -963+698-369-89-96+487 -96+98-96+96 -9658+98-3698 -9632-96+69 -9632+56-96 96-698 9641-9632-44 6985+69-9632
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