化简 3 \sqrt{ } <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z"> 12 + 2 \sqrt{ } <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z"> 3 - \sqrt{ } <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z"> 48

4 \sqrt{ } <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z"> 3

\sqrt{ } <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z"> 3

2 \sqrt{ } <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z"> 3

3 \sqrt{ } <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z"> 3

初中二数学线上考试 Quiz

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

求12，18 及 24的最小公倍数 (L.C.M) 。

72

84

96

128

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

(-2) $\times$ [ 3 $\times$ (11-4) - (6-11) $\times$ 4 ]=?

0

-82

85

-100

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

一水池有大小两个进水管，单开大管，15分钟可把水池注满。若两管齐开，12分钟就可把水池注满。问单开小管，需要多少分钟可把水池注满？

40

50

60

70

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

如果 a=2，b= -3，c= -1，
求 (a+b) (a+c) - (b-a) 的值。

-2

0

2

4

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

解方程式 2(x - 3) = 8 - 3 (x-2)。

x=2

x=3

x=4

x=5

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

因式分解 ad + bc -ac - bd。

(b-a) (c+d）

(a-b) (d-c)

(a+b) (c+d)

(a-b) (c-d)

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

化简 3 $\sqrt{ }$ 12 + 2 $\sqrt{ }$ 3 - $\sqrt{ }$ 48

$\sqrt{ }$ 3

2 $\sqrt{ }$ 3

3 $\sqrt{ }$ 3

4 $\sqrt{ }$ 3

8.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

AD是 $\angle$ CAE的平分线， $\angle$ B=30 $\degree$ 及

$\angle$ DAE=65 $\degree$ 。求 $\angle$ ADC。

15 $\degree$

25 $\degree$

35 $\degree$

45 $\degree$

9.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

若一正多边形的每个内角是160 $\degree$ ，求其边数。

17

18

19

20

10.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

AD=DB， $\angle$ ADB=140 $\degree$ 及 $\angle$ ACD=68 $\degree$ 。求 $\angle$ BAC。

68 $\degree$

72 $\degree$

92 $\degree$

102 $\degree$

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初中二数学线上考试

求12，18 及 24的最小公倍数 (L.C.M) 。

(-2) ×\times× [ 3 ×\times× (11-4) - (6-11) ×\times× 4 ]=?

一水池有大小两个进水管，单开大管，15分钟可把水池注满。若两管齐开，12分钟就可把水池注满。问单开小管，需要多少分钟可把水池注满？

如果 a=2，b= -3，c= -1，求 (a+b) (a+c) - (b-a) 的值。

解方程式 2(x - 3) = 8 - 3 (x-2)。

因式分解 ad + bc -ac - bd。

化简 3 \sqrt{ }​ 12 + 2 \sqrt{ }​ 3 - \sqrt{ }​ 48

AD是 ∠\angle∠ CAE的平分线， ∠\angle∠ B=30 °\degree° 及 ∠\angle∠ DAE=65 °\degree° 。求 ∠\angle∠ ADC。

若一正多边形的每个内角是160 °\degree° ，求其边数。

AD=DB， ∠\angle∠ ADB=140 °\degree° 及 ∠\angle∠ ACD=68 °\degree° 。求 ∠\angle∠ BAC。

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Popular Resources on Wayground

Discover more resources for Mathematics

(-2) $\times$ [ 3 $\times$ (11-4) - (6-11) $\times$ 4 ]=?

如果 a=2，b= -3，c= -1，
求 (a+b) (a+c) - (b-a) 的值。

化简 3 $\sqrt{ }$ 12 + 2 $\sqrt{ }$ 3 - $\sqrt{ }$ 48

AD是 $\angle$ CAE的平分线， $\angle$ B=30 $\degree$ 及

$\angle$ DAE=65 $\degree$ 。求 $\angle$ ADC。

若一正多边形的每个内角是160 $\degree$ ，求其边数。

AD=DB， $\angle$ ADB=140 $\degree$ 及 $\angle$ ACD=68 $\degree$ 。求 $\angle$ BAC。