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七上第三次段考複習

Authored by 蔡佩旻 蔡佩旻

Mathematics

7th Grade

Used 1+ times

七上第三次段考複習
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24 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列何者是錯誤的? 

 x+x+x+x=4x

x+x+x+5=3x+5

a×a×a=a^3

3又1/8 x=3×1/8×x

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

化簡-(4x+5)-(-2x+3)的結果為多少? 

 6x-8

-2x-8 

-2x-2 

 6x+2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

    若 x=-2,則下列哪一個式子的運算結果其值最大? (最接近?)

-2(3-2x)

x+3

2x-1

-3(1-2x)

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列何者為一元一次方程式? 

3x 

x2-1=0

x+y=2

4x+5=4

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列哪一個運算是正確的?

若-3x=6,則 x=6+3

若-2-x=5,則x=5-2

若-4x=2,則 x=(-4)÷2 

若3+x=5,則 3+x-3=5-5。

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

方程式 8-3(2x-1)=2-3x 的解為何? 

-2

2

-3

3

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

解一元一次方程式:

-1

-2

1

2

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