初一乘方計算題!急

2021-12-22 06:15:13 字數 10923 閱讀 4269

1樓:冼天藍

98*2+56)/4-(-1)的平方

4*(-113)+(-5)*123-137*4-77*5*(-1)的24立方

-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+222+(-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)/1/218-6/(-3)*(-2)

(5+3/8*8/30/(-2)-3

(-84)/2*(-3)/(-6)

1/2*(-4/15)/2/3

-3x+2y-5x-7y

2樓:卞興鄢霜

|x+2|+(y+1)^2=0

因為絕對值和完全平方數都是非負數,因此,要使等式成立,只有:

x+2=0

y+1=0

x=-2

y=-1

代入得-3×(x-

2y)^3 -

2×(2x

-y) ^3

=-3×[

-2-2×(-1)]^3 -

2×[2×(-2)

-(-1)]^3

=-3×[0]^3-2× [-3]^3

=0+54=54

3樓:郎秀英費緞

首先要知道絕對值和平方數是非負數已知|

x+2|

+(y+

1)^2

= 0.所以x+2=0

x=-2;

y+1=0

y=-1

-3×(x-

2y)^3 -

2×(2x

-y)^3

=-3[-2-2(-1)]^3-2[2(-2)-(-1)]^3=-3(-2+2)^3-2(-4+1)^3=0-2(-3)^3

=-2(-27)=54

急求60道初一有理數混合運算計算題!!要過程!帶乘方!

4樓:匿名使用者

1.345x0.345x2.96-1.345(的3次方)-1.345x0.345(的2次方)

=-1.345(1.345^2-2*1.345*0.345+0.345^2)

=-1.345(1.345-0.345)^2

=-1.345

1+(-2)+3+(-4)+......+(-1)(的n+1次方)*n

n為奇數

1+(-2)+3+(-4)+......+[(-1)的n+1次方]n

=[1+(-2)]+[3+(-4)]+....+[(-1)的n+1次方]n

=(-1+ -1+...+ )+n

=(1-n)/2+n

=(n+1)/2

n為偶數

1+(-2)+3+(-4)+5+(-6)+......+[(-1)^(n+1)]n

=1+(3-2)+(5-4)+(7-6)......+(n-1-(n-2))+(-n)

=n/2-n

=-n/2

5樓:匿名使用者

.....

/............

6樓:joker天使亞夢

文庫裡有

簡單

130道(難

7樓:匿名使用者

1. 2100-21×53+2255

2. (103-336÷21)×15

3. 800-(2000-9600÷8)

4. 40×48-(1472+328)÷5

5. (488+344)÷(202-194)

6. 2940÷28+136×7

7. 605×(500-494)-1898

8. (2886+6618)÷(400-346)

9. 9125-(182+35×22)

10. (154-76)×(38+49)

11. 3800-136×9-798

12. (104+246)×(98÷7)

13. 918÷9×(108-99)

14. (8645+40×40)÷5

15. (2944+864)÷(113-79)

16. 8080-1877+1881÷3

17. (5011-43×85)+3397

18. 2300-1122÷(21-15)

19. 816÷(4526-251×18)

20. (7353+927)÷(801-792)

21. (28+172)÷(24+16)

22. 6240÷48+63×48

23. 950-28×6+666

24. 86×(35+117÷9)

25. 2500+(360-160÷4)

26. 16×4+6×3

27.39÷3+48÷6

28.24×4-42÷3

29.7×6-12×3

30.56÷4+72÷8

31 (-1)^100*5+(-2)^4/4=

32 (-3)^3-3*(-1/3)^4=

33 (-10)^3+[(-4)^2-(1-3^2)*2=

34 4+(-2)^3*5-(-0.28)/4=

35 (-10^10*2+(-2)^3/4=

36 (-5)^3-3*(-1/2)^4

37 (-10)^4+[(-4)^2-(3+3^2)*2]=

*是乘,/是除,^是次方

1.25*(-3)+70*(-5)+5*(-3)+25

2.9999*3+101*11*(101-92)

3.(23/4-3/4)*(3*6+2)

4. 3/7 × 49/9 - 4/3

5. 8/9 × 15/36 + 1/27

6. 12× 5/6 – 2/9 ×3

7. 8× 5/4 + 1/4

8. 6÷ 3/8 – 3/8 ÷6

9. 4/7 × 5/9 + 3/7 × 5/9

10. 5/2 -( 3/2 + 4/5 )

11. 7/8 + ( 1/8 + 1/9 )

12. 9 × 5/6 + 5/6

13. 3/4 × 8/9 - 1/3

14. 7 × 5/49 + 3/14

15. 6 ×( 1/2 + 2/3 )

16. 8 × 4/5 + 8 × 11/5

17. 31 × 5/6 – 5/6

18. 9/7 - ( 2/7 – 10/21 )

19. 5/9 × 18 – 14 × 2/7

20. 4/5 × 25/16 + 2/3 × 3/4

21. 14 × 8/7 – 5/6 × 12/15

22. 17/32 – 3/4 × 9/24

23. 3 × 2/9 + 1/3

24. 5/7 × 3/25 + 3/7

25. 3/14 ×× 2/3 + 1/6

26. 1/5 × 2/3 + 5/6

27. 9/22 + 1/11 ÷ 1/2

28. 5/3 × 11/5 + 4/3

29. 45 × 2/3 + 1/3 × 15

30. 7/19 + 12/19 × 5/6

31. 1/4 + 3/4 ÷ 2/3

32. 8/7 × 21/16 + 1/2

33. 101 × 1/5 – 1/5 × 21

34.50+160÷40

35.120-144÷18+35

36.347+45×2-4160÷52

37(58+37)÷(64-9×5)

38.95÷(64-45)

39.178-145÷5×6+42

40.812-700÷(9+31×11)

41.85+14×(14+208÷26)

43.120-36×4÷18+35

44.(58+37)÷(64-9×5)

45.(6.8-6.8×0.55)÷8.5

46.0.12× 4.8÷0.12×4.8

47.(3.2×1.5+2.5)÷1.6

48.6-1.6÷4= 5.38+7.85-5.37=

49.7.2÷0.8-1.2×5= 6-1.19×3-0.43=

50.6.5×(4.8-1.2×4)=

51.5.8×(3.87-0.13)+4.2×3.74

52.32.52-(6+9.728÷3.2)×2.5

53.[(7.1-5.6)×0.9-1.15] ÷2.5

54.5.4÷[2.6×(3.7-2.9)+0.62]

55.12×6÷(12-7.2)-6

56.12×6÷7.2-6

57.0.68×1.9+0.32×1.9

58.58+370)÷(64-45)

59.420+580-64×21÷28

60.136+6×(65-345÷23)

15-10.75×0.4-5.7

62.18.1+(3-0.299÷0.23)×1

63.(6.8-6.8×0.55)÷8.5

64.0.12× 4.8÷0.12×4.8

65.(3.2×1.5+2.5)÷1.6

66.3.2×6+(1.5+2.5)÷1.6

67.0.68×1.9+0.32×1.9

68.10.15-10.75×0.4-5.7

69.5.8×(3.87-0.13)+4.2×3.74

70.32.52-(6+9.728÷3.2)×2.5

71.[(7.1-5.6)×0.9-1.15] ÷2.5

72.5.4÷[2.6×(3.7-2.9)+0.62]

73.12×6÷(12-7.2)-6

74.12×6÷7.2-6

75.33.02-(148.4-90.85)÷2.5

1) 76.(25%-695%-12%)*36

77./4*3/5+3/4*2/5

78.1-1/4+8/9/7/9

79.+1/6/3/24+2/21

80./15*3/5

81.3/4/9/10-1/6

82./3+1/2)/5/6-1/3]/1/7

83./5+3/5/2+3/4

84.(2-2/3/1/2)]*2/5

85.+5268.32-2569

86.3+456-52*8

87.5%+6325

88./2+1/3+1/4

2) 89+456-78

3) 5%+. 3/7 × 49/9 - 4/3

4) 9 × 15/36 + 1/27

5) 2× 5/6 – 2/9 ×3

6) 3× 5/4 + 1/4

7) 94÷ 3/8 – 3/8 ÷6

8) 95/7 × 5/9 + 3/7 × 5/9

9) 6/2 -( 3/2 + 4/5 )

10) 8 + ( 1/8 + 1/9 )

11) 8 × 5/6 + 5/6

12) 1/4 × 8/9 - 1/3

13) 10 × 5/49 + 3/14

14) 1.5 ×( 1/2 + 2/3 )

15) 2/9 × 4/5 + 8 × 11/5

16) 3.1 × 5/6 – 5/6

17) 4/7 - ( 2/7 – 10/21 )

18) 19 × 18 – 14 × 2/7

19) 5 × 25/16 + 2/3 × 3/4

20) 4 × 8/7 – 5/6 × 12/15

21) 7/32 – 3/4 × 9/24

22) 1、 2/3÷1/2-1/4×2/5

2、 2-6/13÷9/26-2/3

3、 2/9+1/2÷4/5+3/8

4、 10÷5/9+1/6×4

5、 1/2×2/5+9/10÷9/20

6、 5/9×3/10+2/7÷2/5

7、 1/2+1/4×4/5-1/8

8、 3/4×5/7×4/3-1/2

9、 23-8/9×1/27÷1/27

10、 8×5/6+2/5÷4

11、 1/2+3/4×5/12×4/5

12、 8/9×3/4-3/8÷3/4

13、 5/8÷5/4+3/23÷9/11

23) 1.2×2.5+0.8×2.5

24) 8.9×1.25-0.9×1.25

25) 12.5×7.4×0.8

26) 9.9×6.4-(2.5+0.24)(27) 6.5×9.5+6.5×0.5

0.35×1.6+0.35×3.4

0.25×8.6×4

6.72-3.28-1.72

0.45+6.37+4.55

5.4+6.9×3-(25-2.5)2×41846-620-380

4.8×46+4.8×54

0.8+0.8×2.5

1.25×3.6×8×2.5-12.5×2.4

28×12.5-12.5×20

23.65-(3.07+3.65)

(4+0.4×0.25)8×7×1.25

1.65×99+1.65

27.85-(7.85+3.4)

48×1.25+50×1.25×0.2×8

7.8×9.9+0.78

(1010+309+4+681+6)×12

3×9146×782×6×854

5.15×7/8+6.1-0.60625

1. 3/7 × 49/9 - 4/3

2. 8/9 × 15/36 + 1/27

3. 12× 5/6 – 2/9 ×3

4. 8× 5/4 + 1/4

5. 6÷ 3/8 – 3/8 ÷6

6. 4/7 × 5/9 + 3/7 × 5/9

7. 5/2 -( 3/2 + 4/5 )

8. 7/8 + ( 1/8 + 1/9 )

9. 9 × 5/6 + 5/6

10. 3/4 × 8/9 - 1/3

11. 7 × 5/49 + 3/14

12. 6 ×( 1/2 + 2/3 )

13. 8 × 4/5 + 8 × 11/5

14. 31 × 5/6 – 5/6

15. 9/7 - ( 2/7 – 10/21 )

16. 5/9 × 18 – 14 × 2/7

17. 4/5 × 25/16 + 2/3 × 3/4

18. 14 × 8/7 – 5/6 × 12/15

19. 17/32 – 3/4 × 9/24

20. 3 × 2/9 + 1/3

21. 5/7 × 3/25 + 3/7

22. 3/14 × 2/3 + 1/6

23. 1/5 × 2/3 + 5/6

24. 9/22 + 1/11 ÷ 1/2

25. 5/3 × 11/5 + 4/3

26. 45 × 2/3 + 1/3 × 15

27. 7/19 + 12/19 × 5/6

28. 1/4 + 3/4 ÷ 2/3

29. 8/7 × 21/16 + 1/2

30. 101 × 1/5 – 1/5 × 21

31.50+160÷40 (58+370)÷(64-45)

32.120-144÷18+35

33.347+45×2-4160÷52

34(58+37)÷(64-9×5)

35.95÷(64-45)

36.178-145÷5×6+42 420+580-64×21÷28

37.812-700÷(9+31×11) (136+64)×(65-345÷23)

38.85+14×(14+208÷26)

39.(284+16)×(512-8208÷18)

40.120-36×4÷18+35

41.(58+37)÷(64-9×5)

42.(6.8-6.8×0.55)÷8.5

43.0.12× 4.8÷0.12×4.8

44.(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6

45.6-1.6÷4= 5.38+7.85-5.37=

46.7.2÷0.8-1.2×5= 6-1.19×3-0.43=

47.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9

48.10.15-10.75×0.4-5.7

49.5.8×(3.87-0.13)+4.2×3.74

50.32.52-(6+9.728÷3.2)×2.5

51.[(7.1-5.6)×0.9-1.15] ÷2.5

52.5.4÷[2.6×(3.7-2.9)+0.62]

53.12×6÷(12-7.2)-6 (4)12×6÷7.2-6

102×(-4.5)-(-3)×(-5) ÷2

7.8×6.9+2.2×6.9

(-2)+2-(-52)×(-1) ×5+87÷(-3)×(-1)

5.6×0.258×(20-1.25)

(-7.1) ×〔(-3)×(-5)〕÷2

-2.5×(-4.8)×(0.09)÷(-0.27)

127+352+73+44×(-2)

89×276+(-135)-33

25×71+75÷29 -88÷(-2)

243+89+111+57

9405-2940÷28×21

920-1680÷40÷7

690+47×52-398

148+3328÷64-75

360×24÷32+730

2100-94+48×54

51+(2304-2042)×23

4215+(4361-716)÷81

(247+18)×27÷25

36-720÷(360÷18)

1080÷(63-54)×80

(528+912)×5-6178

8528÷41×38-904

264+318-8280÷69

(174+209)×26- (9000^0)

814-(278+322)÷15

1406+735×9÷45

3168-7828÷38+504

796-5040÷(630÷7)

285+(3000-372)÷36

1+5/6-19/12

3x(-9)+7x(-9)

(-54)x1/6x(-1/3)

1.18.1+(3-0.299÷0.23)×1

2.(6.8-6.8×0.55)÷8.5

3.0.12× 4.8÷0.12×4.84

3.2×1.5+2.5÷(-1.6)

(-2)×3.2×(1.5+2.5)÷1.6

5.6-1.6÷4+(6.8-9)

5.38+7.85-5.37÷89

6.7.2÷0.8-1.2×5

6-1.19×3-0.43

7.6.5×(4.8-1.2×4)

0.68×1.9+0.32×1.9

8.10.15-10.75×0.4-5.7

9.5.8×(3.87-0.13)

(-8.01)+4.2×3.74

10.32.52-(6+9.728÷3.2)×2.5

11.[(7.1-5.6)×0.9-1.15] ÷2.5

12.5.4÷[2.6×(3.7-2.9)+0.62]

13.12×6÷(12-7.2)-6

14.12×6÷7.2-6

15.33.02-(148.4-90.85)÷2.5

(-5)-252×(-78)

(-6) ×(-2)+3÷(5+50)

7-7+3-6-(-90)

(-8)(-3)×(-8)×25

(7+13) ÷(-616)÷(-28)

(8+14-100-27)÷4

(-15) ÷(-1)-101÷10

16÷0.21×(-8) ×(4.1+5.9)

(-10) ×(-2) ×4÷

(-18)(-4)2×[8.01×(-3.14)

9-32

(-20)-23+(-9) ×9.42

(-24)3.4×104÷(-5) ×200.96

[-|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) +√9

2/(-2)+0/7-(-8)*(-2)

(1/4-5/6+1/3+2/3)/1/2

18-6/(-3)*(-2) ×2^7

(5+3/8*8/30/(-2)- √36

(-84)/2*(-3)/(-6)

1/2*(-4/15)/2/3

1+2+3+4+......+100000

1/1+1/2+1/3+......1/50

1+1/2+1/4+1/8+1/16+......1/512

3+9+27+81+243+......9999

1+1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90

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