求200道2001版初一上册数学计算题,求200道2001版初一上册数学计算题,

4个回答

  • 什么是2001版啊?能不能说清楚点

    1-1/3[x-(1+x)/3]=x/2-1/2[2x-(10-7x)/3]

    1-1/3[x-1/3+x/3]=x/2-1/2[2x-10/3+7x/3]

    1-1/3[4x/3-1/3]=x/2-1/2[13x/3-10/3]

    1-4x/9-1/9=x/2-13x/6+10/6

    4x/9-x/2+13/6=10/6-4-1/9

    8x/18-9x/18+39x/18=30/18-18/18-2/18

    38x/18=18/10

    x=10/18÷38/18

    x=10/18×18/38

    x=5/19

    (5x2-2x+3)+(3x2+5x+2)

    x2y +2xy2

    –y3 +3xy2

    –4x2y-x3

    3ab-4ab+8ab-7ab+ab=______.

    7x-(5x-5y)-y=______.

    23a3bc2-15ab2c+8abc-24a3bc2-8abc=______.

    -7x2+6x+13x2-4x-5x2=______.

    2y+(-2y+5)-(3y+2)=______.

    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

    (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)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

    还有50道题,不过没有答案

    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

    1.

    a^3-2b^3+ab(2a-b)

    =a^3+2a^2b-2b^3-ab^2

    =a^2(a+2b)-b^2(2b+a)

    =(a+2b)(a^2-b^2)

    =(a+2b)(a+b)(a-b)

    2.

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

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

    3.

    (x^2+2x)^2+3(x^2+2x)+x^2+2x+3

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

    =(x^2+2x+3)(x^2+2x+1)

    =(x^2+2x+3)(x+1)^2

    4.

    (a+1)(a+2)+(2a+1)(a-2)-12

    =a^2+3a+2+2a^2-3a-2-12

    =3a^2-12

    =3(a+2)(a-2)

    5.

    x^2(y+z)^2-2xy(x-z)(y+z)+y^2(x-z)^2

    =[x(y+z)-y(x-z)]^2

    =(xz+yz)^2

    =z^2(x+y)^2

    6.

    3(a+2)^2+28(a+2)-20

    =[3(a+2)-2][(a+2)+10]

    =(3a+4)(a+12)

    7.

    (a+b)^2-(b-c)^2+a^2-c^2

    =(a+b)^2-c^2+a^2-(b-c)^2

    =(a+b+c)(a+b-c)+(a+b-c)(a-b+c)

    =(a+b-c)(a+b+c+a-b+c)

    =2(a+b-c)(a+c)

    8.

    x(x+1)(x^2+x-1)-2

    =(x^2+x)(x^2+x-1)-2

    =(x^2+x)^2-(x^2+x)-2

    =(x^2+x-2)(x^2+x+1)

    =(x+2)(x-1)(x^2+x+1)

    9x^2(x-1)^2-3(x^2-x)-56

    =9x^2(x-1)^2-3x(x-1)-56

    =[3x(x-1)-8][3x(x-1)+7]

    =(3x^2-3x-8)(3x^2-3x+7)