搜集六年级上册数学题(应用题50道,计算题30道)

1个回答

  • 【同步达纲练习】(时间45分钟,满分100分)

    1.计算题:(10′×5=50′)

    (1)3.28-4.76+1 - ;

    (2)2.75-2 -3 +1 ;

    (3)42÷(-1 )-1 ÷(-0.125);

    (4)(-48) ÷82-(-25) ÷(-6)2;

    (5)- +( )×(-2.4).

    2.计算题:(10′×5=50′)

    (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.

    【素质优化训练】

    1.填空题:

    (1)如是 ,那么ac 0;如果 ,那么ac 0;

    (2)若 ,则abc= ; -a2b2c2= ;

    (3)已知a,b互为相反数,c,d互为倒数,x的绝对值等于2,那么x2-(a+b)+cdx= .

    2.计算:

    (1)-32-

    (2){1+[ ]×(-2)4}÷(- );

    (3)5-3×{-2+4×[-3×(-2)2-(-4) ÷(-1)3]-7}.

    【生活实际运用】

    甲用1000元人民币购买了一手股票,随即他将这手股票转卖给乙,获利10%,而后乙又将这手股票反卖给甲,但乙损失了10%.最后甲按乙卖给甲的价格的九折将这手股票卖给了乙,在上述股票交易中( )

    A.甲刚好亏盈平衡; B.甲盈利1元;

    C.甲盈利9元; D.甲亏本1.1元.

    参考答案:

    【同步达纲练习】

    1.(1)-0.73 (2)-1 ; (3)-14; (4)- ; (5)-2.9

    2.(1)-3 (2)-1 ; (3)- ; (4)1; (5)-624.

    【素质优化训练】

    1.(1)>,>; (2)24,-576; (3)2或6.[提示:∵ =2 ∴x2=4,x=±2]. 2.(1)-31; (2)-8 (3)224

    【生活实际运用】 B

    参考资料:http://edu.jx163.com/edu2/test/attche/site327/20070124/00e04c793857072105990c.doc

    回答者: 朂àì还遈哲 - 试用期 一级 10-4 10:07

    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

    回答者: 754791551 - 魔法学徒 一级 10-5 13:26

    (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

    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)

    (二)填空题:

    (1)零减去a的相反数,其结果是_____________; (2)若a-b>a,则b是_____________数; (3)从-3.14中减去-π,其差应为____________; (4)被减数是-12(4/5),差是4.2,则减数应是_____________; (5)若b-aa (B)a-b>a (C)2a>ab (D)a/b>1

    (二)填空题:

    (1)当|a|/a=1时,a______________0;当|a|/a=-1时,a______________0;(填>,0,则a___________0; (11)若ab/c0,则b___________0; (12)若a/b>0,b/c(-0.3)4>-106 (B)(-0.3)4>-106>(-0.2)3 (C)-106>(-0.2)3>(-0.3)4 (D)(-0.3)4>(-0.2)3>-106 (4)若a为有理数,且a2>a,则a的取值范围是( ) (A)a0 (D)a0 (C)a,b互为相反数; (D)-ab (C)a

    (5)用四舍五入法得到的近似数1.20所表示的准确数a的范围是( )

    (A)1.195≤a