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九年级下册数学计算题,初三50道计算题及答案

  • 数学
  • 2023-08-16

九年级下册数学计算题?1、化简后得(x-y)/(x+y)带入后得数为根号2 2、根号内数一定要>=0 即x-1>=0 1-x>=0 x只能为1 即y<1/3 所以|1-y|=1-y 原式=(1-y)/(y-1)=-(y-1)/(y-1)=-1 3、那么,九年级下册数学计算题?一起来了解一下吧。

中职数学100道解答题

5/3÷(-1/4)-0.4*25/6=-5/3*4-2/5*25/6=-20/3-5/3=-25/3=-8又3分之碰桥1

3/2÷(-3)+(2/8-3/8)*8/5=3/2*(-1/3)+(-1/8)*8/5=-1/2-1/5=-7/10

(-1/4+7/4)÷[1/2+(-3/4)*(-4/3)]=3/2÷[1/2+1]=3/2÷3/2=3/2*2/3=1

1/2*(-4)+(1-1/5*3/5)*(-3)=-2+22/25*(-3)=-2-66/25=-106/25=-4又25分穗吵孙之6

5/3*(-6)-1/2÷4/3=-10-1/2*3/4=-10-3/8=-83/8=-10又8分之猜链3

初三数学基础计算题

要计算 (4+2√6) * (4+2√6) 的销兄值,我们可以使用 FOIL 方法,即先算乘法中的第一项、外项、内项和最后一项,然后将所有同类项相加。具体步骤如下:

第一项:将两个表达式的第一项相乘。

4 * 4 = 16

外项:将第一个表达式的第一项与第二个尘斗蠢表达式的第二项相乘。

4 * 2√6 = 8√6

内派陪项:将第一个表达式的第二项与第二个表达式的第一项相乘。

2√6 * 4 = 8√6

最后一项:将两个表达式的最后一项相乘。

2√6 * 2√6 = 24

现在可以将同类项相加来简化表达式:

16 + 8√6 + 8√6 + 24 = 40 + 16√6

因此,(4+2√6) * (4+2√6) 的值为 40 + 16√6。

初三数学一元二次方程计算题

初中计算题练习

(-1.5)×(-9)-12÷(-4)

56÷(-7)-2÷5+0.4

3.57×29÷(-4)

5.6÷(-2.8)-(-50)÷2

[9.6+(-7.3)]×[(-5)-(-7)]

12.3÷[5.6+(-1.2)]

(-75.6)÷(1/4+1/5)

9.5×(-9.5)÷1/2

95.77÷(-2)+(-34.6)

(-51.88)÷2-(-5)×24

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

9999*3+101*11*(101-92)

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

3/7 × 49/9 - 4/3

8/9 × 15/36 + 1/消渗兄27

12× 5/6 – 2/9 ×3

8× 5/4 + 1/4

6÷ 3/8 – 3/8 ÷6

4/7 × 5/9 + 3/7 × 5/9

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

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

9 × 5/6 + 5/6

3/4 × 8/9 - 1/3

7 × 5/49 + 3/14

6 ×( 1/2 + 2/3 )

8 × 4/5 + 8 × 11/5

31 × 5/6 – 5/6

9/7 - ( 2/7 – 10/21 )

5/9 × 18 – 14 × 2/7

4/5 × 25/16 + 2/3 × 3/4

14 × 8/7 – 5/6 × 12/15

17/32 – 3/4 × 9/24

3 × 2/9 + 1/3

5/7 × 3/25 + 3/7

3/14 × 2/3 + 1/6

1/5 × 2/3 + 5/6

9/22 + 1/11 ÷ 1/2

5/3 × 11/5 + 4/3

45 × 2/3 + 1/3 × 15

7/19 + 12/19 × 5/6

1/4 + 3/4 ÷ 2/3

8/7 × 21/16 + 1/2

101 × 1/5 –喊喊 1/5 × 21

50+160÷40

120-144÷18+35

347+45×2-4160÷52

37×(58+37)÷(64-9×5)

95÷(64-45)

178-145÷5×6+42

812-700÷(9+31×11)

85+14×(14+208÷26)

120-36×4÷18+35

(58+37)÷(64-9×5)

(6.8-6.8×0.55)÷8.5

0.12× 4.8÷0.12×4.8

(3.2×1.5+2.5)÷1.6

6-1.6÷4= 5.38+7.85-5.37=

7.2÷0.8-1.2×5= 6-1.19×3-0.43=

6.5×(4.8-1.2×4)=

5.8×(3.87-0.13)+4.2×3.74

32.52-(6+9.728÷3.2)×2.5

[(7.1-5.6)×0.9-1.15] ÷2.5

5.4÷[2.6×(3.7-2.9)+0.62]

12×6÷(12-7.2)-6

12×6÷7.2-6

0.68×1.9+0.32×1.9

58+370)÷(64-45)

420+580-64×21÷28

136+6×(65-345÷23)

15-10.75×0.4-5.7

18.1+(3-0.299÷0.23)×1

(6.8-6.8×0.55)÷8.5

0.12× 4.8÷0.12×4.8

(3.2×1.5+2.5)÷1.6

3.2×6+(1.5+2.5)÷1.6

0.68×1.9+0.32×1.9

10.15-10.75×0.4-5.7

5.8×(3.87-0.13)+4.2×3.74

32.52-(6+9.728÷3.2)×2.5

[(7.1-5.6)×0.9-1.15] ÷2.5

5.4÷[2.6×(3.7-2.9)+0.62]

12×6÷(12-7.2)-6

12×6÷7.2-6

33.02-拿袭(148.4-90.85)÷2.5

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

89+456-78

5%+. 3/7 × 49/9 - 4/3

9 × 15/36 + 1/27

2× 5/6 – 2/9 ×3

3× 5/4 + 1/4

94÷ 3/8 – 3/8 ÷6

95/7 × 5/9 + 3/7 × 5/9

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

8 + ( 1/8 + 1/9 )

8 × 5/6 + 5/6

1/4 × 8/9 - 1/3

10 × 5/49 + 3/14

1.5 ×( 1/2 + 2/3 )

2/9 × 4/5 + 8 × 11/5

3.1 × 5/6 – 5/6

4/7 - ( 2/7 – 10/21 )

19 × 18 – 14 × 2/7

5 × 25/16 + 2/3 × 3/4

4 × 8/7 – 5/6 × 12/15

7/32 – 3/4 × 9/24

2/3÷1/2-1/4×2/5

2-6/13÷9/26-2/3

2/9+1/2÷4/5+3/8

10÷5/9+1/6×4

1/2×2/5+9/10÷9/20

5/9×3/10+2/7÷2/5

1/2+1/4×4/5-1/8

3/4×5/7×4/3-1/2

23-8/9×1/27÷1/27

8×5/6+2/5÷4

1/2+3/4×5/12×4/5

8/9×3/4-3/8÷3/4

5/8÷5/4+3/23÷9/11

1.2×2.5+0.8×2.5

8.9×1.25-0.9×1.25

12.5×7.4×0.8

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

3/7 × 49/9 - 4/3

8/9 × 15/36 + 1/27

12× 5/6 – 2/9 ×3

8× 5/4 + 1/4

6÷ 3/8 – 3/8 ÷6

4/7 × 5/9 + 3/7 × 5/9

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

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

9. 9 × 5/6 + 5/6

3/4 × 8/9 - 1/3

7 × 5/49 + 3/14

6 ×( 1/2 + 2/3 )

8 × 4/5 + 8 × 11/5

31 × 5/6 – 5/6

9/7 - ( 2/7 – 10/21 )

5/9 × 18 – 14 × 2/7

4/5 × 25/16 + 2/3 × 3/4

14 × 8/7 – 5/6 × 12/15

17/32 – 3/4 × 9/24

3 × 2/9 + 1/3

5/7 × 3/25 + 3/7

3/14 × 2/3 + 1/6

1/5 × 2/3 + 5/6

9/22 + 1/11 ÷ 1/2

5/3 × 11/5 + 4/3

45 × 2/3 + 1/3 × 15

7/19 + 12/19 × 5/6

1/4 + 3/4 ÷ 2/3

8/7 × 21/16 + 1/2

101 × 1/5 – 1/5 × 21

50+160÷40 (58+370)÷(64-45)

120-144÷18+35

347+45×2-4160÷52

(58+37)÷(64-9×5)

95÷(64-45)

178-145÷5×6+42 420+580-64×21÷28

812-700÷(9+31×11) (136+64)×(65-345÷23)

85+14×(14+208÷26)

(284+16)×(512-8208÷18)

120-36×4÷18+35

(58+37)÷(64-9×5)

(6.8-6.8×0.55)÷8.5

0.12× 4.8÷0.12×4.8

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

6-1.6÷4

5.38+7.85-5.37

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÷{-9÷[6+(-5.67)]}

(-18)(-4)2×[8.01×(-3.14)

9-32{-890-[79+8.1] ×9}

(-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

8-2×32-(-2×3)2

–12 × (-3)2-(-1/2)2003×(-2)2002÷2/9

(0.5-3/2)÷3/1×[-2-(-3)3]-∣1/8-0.52∣

[-38-(-1)7+(-3)8]×-53

a^3-2b^3+ab(2a-b)-√a-b^2

15*(-8)+2b^2+

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

6-3a^8-(-5^2-6)

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

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

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

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

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

8x(x+1)(x^2+x-1)-2

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

14a(a-b)+(a-b)^2

11.-ab(a-b)^+a(b-a)^2

12.3(x+2)-2x=5-4x

13.5(x+2a)-a=2(b-2x)+4a

3.14*3.42 (2)972*3.14*1/4

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

5+21*8/2-√121-59

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|-5^4)

(1/3+2/3)/1/2-|-9+(-5)|

18-6/(-3)*(-2)-|-9|

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

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

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

|-3x+2y-5x-7y|-|-9x+2y|

-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-√64-5^2

-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+√9

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

-1+2-3+4-5+6-7+√9

-50-28+(-24)-(-22)

-19.8-(-20.3)-(+20.2)-10.8;

0.25- +(-1 )-(+3 ).

-1-23.33-(+76.76)

1-2*2*2*2-5^2+(6^2-5^2)

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

-1+8-7+5^7-(-5+√9)

125*3+125*5+25*3+25

9999*3+101*11*(101-92)

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

3/7 × 49/9 - 4/3

8/9 × 15/36 + 1/27

12x*5/6y–2/9y*|3x-2y|

8×5/4+1/4*|-7-8|

6÷ 3/8 – 3/8 ÷6

4/7 × 5/9 + 3/7 × 5/9

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

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

9 × 5/6 + 5/6

3/4 × 8/9 - 1/3

7 × 5/49 + 3/14

6 ×( 1/2 + 2/3 )

8 × 4/5 + 8 × 11/5

31 × 5/6 – 5/6

9/7 - ( 2/7 – 10/21 )

5/9 × 18 – 14 × 2/7

4/5 × 25/16 + 2/3 × 3/4

14 × 8/7 – 5/6 × 12/15

17/32 – 3/4 × 9/24

3^45 × 2/9 + 1/3

5/7 × 3/25 + 3/7

3/14 ×2/3 + 1/6

1/5 × 2/3 + 5/6

5/3 × 11/5 + 4/3

9/22+1/11÷1/2-√169

45^8 × 2/3 + 1/3 × 15

7/19 + 12/19 × 5/6

1/4 + 3/4 ÷ 2/3

8/7 × 21/16 + 1/2

101^4×(-1/5–1/5×21)

50+√160÷40^5

120-144÷18+35

347+45×2-4160÷52

37^2(58+37)÷(64-9×5)

95÷(64-45)

178-145÷5×6+42

812-700÷(9+31×11)

85+14×(14+208÷26)

120-36×4÷18+35

(58+37)÷(64-9×5)

(6.8-6.8×0.55)÷8.5

0.12× 4.8÷0.12×4.8

(3.2×1.5+2.5)÷1.6

6-1.6÷4= 5.38+7.85-5.37=

7.2÷0.8-1.2×5= 6-1.19×3-0.43=

6.5×(4.8-1.2×4)=

5.8×(3.87-0.13)+4.2×3.74

32.52-(6+9.728÷3.2)×2.5

[(7.1-5.6)×0.9-1.15] ÷2.5

5.4÷[2.6×(3.7-2.9)+0.62]

12×6÷(12-7.2)-6

12×6÷7.2-6

0.68×1.9+0.32×1.9

58+370)÷(64-45)

420+580-64×21÷28

136+6×(65-345÷23)

15-10.75×0.4-5.7

18.1+(3-0.299÷0.23)×1

(6.8-6.8×0.55)÷8.5

0.12× 4.8÷0.12×4.8

(3.2×1.5+2.5)÷1.6

3.2×6+(1.5+2.5)÷1.6

0.68×1.9+0.32×1.9

10.15-10.75×0.4-5.7

5.8×(3.87-0.13)+4.2×3.74

32.52-(6+9.728÷3.2)×2.5

[(7.1-5.6)×0.9-1.15] ÷2.5

5.4÷[2.6×(3.7-2.9)+0.62]

12×6÷(12-7.2)-6

12×6÷7.2-6

33.02-(148.4-90.85)÷2.5

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

7/4*3/5+3/4*2/5

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

7+1/6/3/24+2/21

8/15*3/5

3/4/9/10-1/6

8/3+1/2)/5/6-1/3]/1/7

9/5+3/5/2+3/4

8^6(2-2/3/1/2)]*2/5

8+5268.32-2569

3+456-52*8

87.5%+6325

8/2+1/3+1/4

89+456-78

5%+. 3/7 × 49/9 - 4/3

9 × 15/36 + 1/27

2× 5/6 – 2/9 ×3

3× 5/4 + 1/4

94÷ 3/8 – 3/8 ÷6

95/7 × 5/9 + 3/7 × 5/9

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

8 + ( 1/8 + 1/9 )

8 × 5/6 + 5/6

1/4 × 8/9 - 1/3

10× 5/49 + 3/14

1.5 ×( 1/2 + 2/3 )

2/9 × 4/5 + 8 × 11/5

3.1 × 5/6 – 5/6

4/7 - ( 2/7 – 10/21 )

19 × 18 – 14 × 2/7

5 × 25/16 + 2/3 × 3/4

4 × 8/7 – 5/6 × 12/15

7/32 – 3/4 × 9/24

2/3÷1/2-1/4×2/5

2-6/13÷9/26-2/3

2/9+1/2÷4/5+3/8

10÷5/9+1/6×4

1/2×2/5+9/10÷9/20

5/9×3/10+2/7÷2/5

1/2+1/4×4/5-1/8

3/4×5/7×4/3-1/2

23-8/9×1/27÷1/27

18×5/6+2/5÷4

11/2+3/4×5/12×4/5

8/9×3/4-3/8÷3/4

5/8÷5/4+3/23÷9/11

1.2×2.5+0.8×2.5

8.9×1.25-0.9×1.25

12.5×7.4×0.8

9.9×6.4-(2.5+0.24)

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

3/7 × 49/9 - 4/3

8/9 × 15/36 + 1/27

12× 5/6 – 2/9 ×3

8× 5/4 + 1/4

6÷ 3/8 – 3/8 ÷6

4/7 × 5/9 + 3/7 × 5/9

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

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

9 × 5/6 + 5/6

3/4 × 8/9 - 1/3

7 × 5/49 + 3/14

6 ×( 1/2 + 2/3 )

8 × 4/5 + 8 × 11/5

31 × 5/6 – 5/6

9/7 - ( 2/7 – 10/21 )

5/9 × 18 – 14 × 2/7

4/5 × 25/16 + 2/3 × 3/4

14 × 8/7 – 5/6 × 12/15

17/32 – 3/4 × 9/24

3 × 2/9 + 1/3

5/7 × 3/25 + 3/7

3/14 × 2/3 + 1/6

1/5 × 2/3 + 5/6

9/22 + 1/11 ÷ 1/2

5/3 × 11/5 + 4/3

45 × 2/3 + 1/3 × 15

7/19 + 12/19 × 5/6

1/4 + 3/4 ÷ 2/3

8/7 × 21/16 + 1/2

101 × 1/5 – 1/5 × 21

50+160÷40 (58+370)÷(64-45)

120-144÷18+35

347+45×2-4160÷52

(58+37)÷(64-9×5)

95÷(64-45)

178-145÷5×6+42 420+580-64×21÷28

812-700÷(9+31×11)

(136+64)×(65-345÷23)

85+14×(14+208÷26)

(284+16)×(512-8208÷18)

120-36×4÷18+35

(58+37)÷(64-9×5)

(6.8-6.8×0.55)÷8.5

0.12× 4.8÷0.12×4.8

(3.2×1.5+2.5)÷1.6

3.2×(1.5+2.5)÷1.6

6-1.6÷4= 5.38+7.85-5.37=

7.2÷0.8-1.2×5= 6-1.19×3-0.43=

6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9

10.15-10.75×0.4-5.7

5.8×(3.87-0.13)+4.2×3.74

32.52-(6+9.728÷3.2)×2.5

[(7.1-5.6)×0.9-1.15] ÷2.5

5.4÷[2.6×(3.7-2.9)+0.62]

12×6÷(12-7.2)-6 (4)12×6÷7.2-6

102^2×4.5+8^5-√529

7.8×6.9+2.2×6.9

5.6×0.25

8×(20-1.25)

127+352+73+44

89+276+135+33

25+71+75+29 +88

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

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)

18.1+(3-0.299÷0.23)×1

(6.8-6.8×0.55)÷8.5

0.12× 4.8÷0.12×4.8

(3.2×1.5+2.5)÷1.6

3.2×(1.5+2.5)÷1.6

5.6-1.6÷4

5.38+7.85-5.37

7.2÷0.8-1.2×5

6-1.19×3-0.43

6.5×(4.8-1.2×4)

0.68×1.9+0.32×1.9

115-10.75×0.4-5.7

5.8×(3.87-0.13)+4.2×3.74

32.52-(6+9.728÷3.2)×2.5

[(7.1-5.6)×0.9-1.15] ÷2.5

5.4÷[2.6×(3.7-2.9)+0.62]

12×6÷(12-7.2)-6

12×6÷7.2-6

33.02-(148.4-90.85)÷2.5

二.解方程

2x=7(x-5)

8(3x+3)=240

4.74+4x-2.5x=8.1

(2.81+x)÷2.81=1

15x-30=16(x-2)

(-3)^3-3^3

(-1)^2-5.6

2^2+3^3-4^4

(2^4-3^2)^3-5^5

[(1.6^2-2^3)-2.1]^2

(5.66×2)^2-15^2

(-15)^x=225,x=?

[(-4)^2-4^2]×2^2

[(-5.6)^2+3]^2

[5.6^2+(-5.6)^2]×(-1)^2

3x+28-x=56

1.5x+6=3.75

2(3.6x+2.8)=-1.6

9.5x+9.5=19

18(x-35)=-36

x+7-(-36+8^2)/2=8+7^4/3

a-7-98+7a=3.2*5a

89/2+35/6x=3*9+2^3/5+7x

3X+189/3=521/2

4Y+119*^3=22/11

3X*189=5*4^5/3

8Z/6=458/5

3X+77=59

4Y-6985=81

87X*13=5

7Z/93=41

15X+863-65X=54

58Y*55=27489

7(2x-1)-3(4x-1)=4(3x+2)-1

(5y+1)+ (1-y)= (9y+1)+ (1-3y)

[-6(-7^4*8)-4]=x+2

20%+(1-20%)(320-x)=320×40%

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

2(x-2)-3(4x-1)=9(1-x)

11x+64-2x=100-9x

15-(8-5x)=7x+(4-3x)

3(x-7)-2[9-4(2-x)]=22

3/2[2/3(1/4x-1)-2]-x=2

2x+7^2=157

1)判断题:

判断下列方程是否是一元一次方程:

①-3x-6x2=7( )

③5x+1-2x=3x-2 ( )

④3y-4=2y+1. ( )

判断下列方程的解法是否正确:

①解方程3y-4=y+3

解:3y-y=3+4,2y=7,y=3.5

②解方程:0.4x-3=0.1x+2

解:0.4x+0.1x=2-3;0.5x=-1,x=-2

③解方程

解:5x+15-2x-2=10,3x=-3,x=-1;

④解方程

解:2x-4+5-5x=-1,-3x=-2,x= .( )

2)填空题:

(1)若2(3-a)x-4=5是关于x的一元一次方程,则a≠_

(2)关于x的方程ax=3的解是自然数,则整数a的值为_

(3)方程5x-2(x-1)=17 的解是_

(4)x=2是方程2x-3=m- 的解,则m=_ .

(5)若-2x2-5m+1=0 是关于x的一元一次方程,则m=_ .

(6)当y=_ 时,代数式5y+6与3y-2互为相反数.

(7)当m=_ 时,方程 的解为0.

(8)已知a≠0.则关于x的方程3ab-(a+b)x=(a-b)x的解为______ .

3)选择题:

(1)方程ax=b的解是( ).

A.有一个解x= B.有无数个解

C.没有解 D.当a≠0时,x=

(2)解方程 ( x-1)=3,下列变形中,较简捷的是( )

A.方程两边都乘以4,得3( x-1)=12

B.去括号,得x- =3

C.两边同除以 ,得 x-1=4

D.整理,得

(3)方程2- 去分母得( )

A.2-2(2x-4)=-(x-7) B.12-2(2x-4)=-x-7

C.12-2(2x-4)=-(x-7) D.以上答案均不对

(4)若代数式 比 大1,则x的值是( ).

A.13 B. C.8 D.

(5)x=1.5是方程( )的解.

A.4x+2=2x-(-2-9)

B.2{3[4(5x-1)-8]-2}=8

C.4x+9 =6x+6

4)解答下列各题:

(1)x等于什么数时,代数式 的值相等?

(2)y等于什么数时,代数式 的值比代数式 的值少3?

(3)当m等于什么数时,代数式2m- 的值与代数式 的值的和等于5?

(4)解下列关于x的方程:

①ax+b=bx+a;(a≠b);

三.化简、化简求值

化间求值:

1、-9(x-2)-y(x-5)

(1)化简整个式子。

初三数学计算题100道含答案

3分之5*-(4分之1)+5分之2*6分之猛纤迹25=-3分之20+3分之5=-5

2分之3*(-3)-5分之1=-10分之3

2分之3÷(2分之1+1)=1

枝并 -2+5分竖穗之2*(-3)=-3又5分之

-10-2分之1÷3分之4=-10又8分之3

不知道有没有算错,你自己再核对下吧。

八下数学计算题200道带答案过程

分式方程型纯橘:

1/(x+1)+1/(x²-1)+1/(1-x)

=1/(x+1)+1/(x²裤姿-1)-1/(x-1)

=(x-1)/(x²-1)+1/(x²-1)-(x+1)/卜团(x²-1)

=[x-1+1-(x+1)]/(x²-1)

=-1/(x²-1)

=1/(1-x²)

以上就是九年级下册数学计算题的全部内容,要计算 (4+2√6) * (4+2√6) 的值,我们可以使用 FOIL 方法,即先算乘法中的第一项、外项、内项和最后一项,然后将所有同类项相加。具体步骤如下:第一项:将两个表达式的第一项相乘。

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