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初一计算题,初一计算题解题技巧和方法

  • 初一
  • 2025-01-15

初一计算题?初一的有理数计算题,对于学生们来说是一个重要的练习。在解决这些题目时,我们不仅需要掌握基本的加减乘除运算,还要理解负数和正数之间的关系。例如,第一题-38)+52+118+(-62)=,通过计算可以得出结果为80。第二题(-32)+68+(-29)+(-68)=,经过计算我们得知答案是-41。那么,初一计算题?一起来了解一下吧。

七年级上混合运算100题

初一的有理数计算题,对于学生们来说是一个重要的练习。在解决这些题目时,我们不仅需要掌握基本的加减乘除运算,还要理解负数和正数之间的关系。例如,第一题-38)+52+118+(-62)=,通过计算可以得出结果为80。第二题(-32)+68+(-29)+(-68)=,经过计算我们得知答案是-41。第三题(-21)+251+21+(-151)=,计算后得到180。第四题12+35+(-23)+0=,结果是24。第五题(-6)+8+(-4)+12 =,经过计算可以得到10。第六题3又1/4+(-2又3/5)+5又3/4+(-8又2/5)=,通过计算我们得知答案是1。

第七题9+(-7)+10+(-3)+(-9) =,计算后得到0。第八题27+(-26)+33+(-27) =,结果是7。第九题(+4又5/8)+(-3.257)+(-4.625)=,通过计算我们得知答案为-3.482。第十题[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)=,计算后得到-10243。第十一题5+21*8/2-6-59 =,经过计算可以得出-44。第十二题68/21-8-11*8+61=,计算后得到-43。

初一计算题专项训练

[|-98|+76+(-87)]-23[56+(-75)-(7)]-(8+4+3)

-(-89)+|-87|-23+[-75-(7)+76]-(10+39-24)

|-9.8|+(-4.6)-[8.7-(-1.3)]+(-5.4)-(-0.2)

[-(-84)+46]-|-9.1|+(+1.9)

[-(-90)+(-34)]-(+43)+(-57)+10

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)

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

(-5)-(+3)+(-9)-(-7)

(-5)+(+8)-(+2)-(-3)

5-(-3 )-(+7)-2

(-21)+(+16)-(-13)-(+7)+(-6)

2 -(- )+(-0.5)+(+2)-(+ )-2

(-7)-(+5)+(+3)-(-9)

-(+2 )-(-1 )-(+3 )

-14 5 (-3)=-12

-12 (-7) (-5) (-6)

23.33-(+76.76)

(-6-24.3)-(-12+9.1)+(0-2.1)

6+(7-8)

(-78)+25+26+27

(-3)+(-2)+(-1)

39+28+26-125

[2/3-4-1/4+(-0.4)]+1/3+2

22+(-4)+(-2)+4-3

(-2)+7-(-16)-(-3)

(-5)-(+3)+(-9)-(-7)

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

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

(-5)+(-8)-(-2)-3

(-21)+(+16)-(-13)-(+7)+(-6)

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

(-0.73)+(-0.62)-(+0.75)

(-19)+(-11)-(-33)+27

(-6.4)+(-3.6)-(-12.5)+4.5

(-81)+(-19)-27+33

(-3.2)-(-6.2)+(-5.1)+(-4.9)

(-6.9)+(-3.1)+(+2.7)+(-2.1)

初一数学化简求值50题

初一数学计算题集锦,附答案。

1) 3/7 × 49/9 - 4/3 = 7/3 - 4/3 = 1

2) 8/9 × 15/36 + 1/27 = 10/27 + 1/27 = 1/3

3) 12× 5/6 – 2/9 ×3 = 10 - 2/3 = 9 1/3

4) 8× 5/4 + 1/4 = 10 + 1/4 = 10 1/4

5)51°37' + 72°52' = 124°29'

6)108°26' - 79°39' = 28°47'

7)-7x2 + 6x + 13x2 - 4x - 5x2 = 4x2 + 2x

8)2y + (-2y + 5) - (3y + 2) = 3 - 3y

9)(-17/4) + (-10/3) + (+13/3) + (11/3) = 1/4

10)(-1.8) + (+0.2) + (-1.7) + (0.1) + (+1.8) + (+1.4) = 0.2

11)(+1.3) - (+17/7) = -0.6

12)(-2) - (+2/3) = -2.666

13)|(-7.2) - (-6.3) + (1.1)| = 1.2

14)|(-5/4) - (-3/4)| - |1 - 5/4 - |-3/4|) = 1/2

15)(-2/199) * (-7/6 - 3/2 + 8/3) = 0.02

16)4a) * (-3b) * (5c) * 1/6 = -10abc/3

17)12χ + 1.8 × 0.9 = 7.2 (9 - 5χ) × 0.3 = 1.02 6.4χ - χ = 28 + 4.4 解得χ = 2.8

18)1 + 1/(1 + 2) + 1/(1 + 2 + 3) + 1/(1 + 2 + 3 + 4) + ... + 1/(1 + 2 + 3 + ... + 2004) ≈ 63.05

19)已知a^m=4,a^n=3, 求a^2m+n和a^m-3n的值,解得a^2m+n = 16,a^m-3n = 1/27

20)因式分解a 5 - a,2x^4 + 4x^2 - 6,(x+y)^2 + 2(x+y) + 1,a + a^4

21)因式分解xy^4 - 2xy^2 - 8x,3x^4 - 6x^2 + 3,x^2 - y^2 + 3x - 3y

22)(5x^2 - 2x + 3) + (3x^2 + 5x + 2) = 8x^2 + 3x + 5

23)x^2y + 2xy^2 - y^3 + 3xy^2 - 4x^2y - x^3 = -x^3 - 3x^2y + 5xy^2 - y^3

24)(x + 2x^2) - 2(2x^2 + 3x + 2) = -3x^2 - 4x - 4

25)(x - 2 + y)(x + 2 - y) = x^2 - 4 - y^2 + 4y

26)(2x - 3y)(4x^2 + 9y^2)(4x + 6y) = 8x^3 + 12x^2y - 18xy^2 - 27y^3

27)(x - 2)(2x + 1) - 3(2x - 1) = 2x^2 - 3x - 1 - 6x + 3 = 2x^2 - 9x + 2

28)已知x + y = 10, xy = 24,求x^2 + y^2的值,解得x^2 + y^2 = 68

29)求值[2x^2 - (x + y)(x - y)][(-x - y)(-x + y) + 2y^2]其中x = -1, y = -2,解得32

30)证明:如果3(a^2 + b^2 + c^2) = (a + b + c)^2, 那么a = b = c,证明过程略

初一计算题解题技巧和方法

以分数脱式计算题为了,具体如下:

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

初一超难计算题

-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

-5+21*8/2-6-59

68/21-8-11*8+61

-2/9-7/9-56

2.4-(-3/5)+(-3.1)+4/5

(-6/13)+(-7/13)-(-2)

3/4-(-11/6)+(-7/3)

11+(-22)-3×(-11)

(-0.1)÷1/2×(-100)

2.4-(-3/5)+(-3.1)+4/5

(-6/13)+(-7/13)-(-2)

3/4-(-11/6)+(-7/3)

11+(-22)-3×(-11)

(-0.1)÷1/2×(-100)

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.(-8)-(-1)

2.45+(-30)

3.-1.5-(-11.5)

4.-1/4-(-1/2)

5.15-[1-(20-4)]

6.-40-28-(-19)+(-24)

7.22.54+(-4.4)+(-12.54)+4.4

8.(2/3-1/2)-(1/3-5/6)

-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

-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

39+[-23]+0+[-16]= 0

[-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

(1)-23÷1 ×(-1 )2÷(1 )2;

(2)-14-(2-0.5)× ×[( )2-( )3];

(3)-1 ×[1-3×(- )2]-( )2×(-2)3÷(- )3

(4)(0.12+0.32) ÷ [-22+(-3)2-3 × ];

(5)-6.24×32+31.2×(-2)3+(-0.51) ×624.

[-|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÷〔138÷(100-54)〕 85×(95-1440÷24)

80400-(4300+870÷15) 240×78÷(154-115)

1437×27+27×563 〔75-(12+18)〕÷15

2160÷〔(83-79)×18〕 280+840÷24×5

325÷13×(266-250) 85×(95-1440÷24)

58870÷(105+20×2) 1437×27+27×563

81432÷(13×52+78) [37.85-(7.85+6.4)] ×30

156×[(17.7-7.2)÷3] (947-599)+76×64

36×(913-276÷23) [192-(54+38)]×67

[(7.1-5.6)×0.9-1.15]÷2.5 81432÷(13×52+78)

5.4÷[2.6×(3.7-2.9)+0.62] (947-599)+76×64 60-(9.5+28.9)]÷0.18 2.881÷0.43-0.24×3.5 20×[(2.44-1.8)÷0.4+0.15] 28-(3.4 1.25×2.4) 0.8×〔15.5-(3.21 5.79)〕 (31.8 3.2×4)÷5 194-64.8÷1.8×0.9 36.72÷4.25×9.9 3.416÷(0.016×35) 0.8×[(10-6.76)÷1.2]

(136+64)×(65-345÷23) (6.8-6.8×0.55)÷8.5

0.12× 4.8÷0.12×4.8 (58+37)÷(64-9×5)

812-700÷(9+31×11) (3.2×1.5+2.5)÷1.6

85+14×(14+208÷26) 120-36×4÷18+35

(284+16)×(512-8208÷18) 9.72×1.6-18.305÷7

4/7÷[1/3×(3/5-3/10)] (4/5+1/4)÷7/3+7/10

12.78-0÷( 13.4+156.6 ) 37.812-700÷(9+31×11) (136+64)×(65-345÷23) 3.2×(1.5+2.5)÷1.6

85+14×(14+208÷26) (58+37)÷(64-9×5)

(6.8-6.8×0.55)÷8.5 (284+16)×(512-8208÷18)

0.12× 4.8÷0.12×4.8 (3.2×1.5+2.5)÷1.6

120-36×4÷18+35 10.15-10.75×0.4-5.7

5.8×(3.87-0.13)+4.2×3.74 347+45×2-4160÷52

32.52-(6+9.728÷3.2)×2.5 87(58+37)÷(64-9×5)

[(7.1-5.6)×0.9-1.15] ÷2.5 (3.2×1.5+2.5)÷1.6

5.4÷[2.6×(3.7-2.9)+0.62] 12×6÷(12-7.2)-6

3.2×6+(1.5+2.5)÷1.6 (3.2×1.5+2.5)÷1.6

5.8×(3.87-0.13)+4.2×3.74

33.02-(148.4-90.85)÷2.5

(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)

(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 × 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

0.12χ+1.8×0.9=7.2 (9-5χ)×0.3=1.02 6.4χ-χ=28+4.4

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.-5+58+13+90+78-(-56)+50

52.-7*2-57/(3

53.(-7)*2/(1/3)+79/(3+6/4)

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

没有那么多了

以上就是初一计算题的全部内容,以分数脱式计算题为了,具体如下: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、内容来源于互联网,信息真伪需自行辨别。如有侵权请联系删除。

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