初中二数学线上考试

初中二数学线上考试

1st - 12th Grade

10 Qs

quiz-placeholder

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初中二数学线上考试

初中二数学线上考试

Assessment

Quiz

Mathematics

1st - 12th Grade

Practice Problem

Medium

Created by

陆筠艳 陆筠艳

Used 335+ times

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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{ } 

2 \sqrt{ } 

3 \sqrt{ } 

4 \sqrt{ } 

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