初中二数学线上考试

初中二数学线上考试

Assessment

Flashcard

Mathematics

1st - 12th Grade

Hard

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16 questions

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1.

FLASHCARD QUESTION

Front

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?

Back

60分钟

2.

FLASHCARD QUESTION

Front

解方程式 2(x - 3) = 8 - 3 (x-2)。

Back

x=4

3.

FLASHCARD QUESTION

Front

求12,18 及 24的最小公倍数 (L.C.M)。

Back

72

4.

FLASHCARD QUESTION

Front

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

Back

4

5.

FLASHCARD QUESTION

Front

因式分解 ad + bc -ac - bd。

Back

(a-b) (d-c)

6.

FLASHCARD QUESTION

Front

什么是最小公倍数?

Back

最小公倍数是能被两个或多个数整除的最小正整数。

7.

FLASHCARD QUESTION

Front

如何解方程式?

Back

通过将未知数移到一边,已知数移到另一边,最后求解未知数。

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