Question 1

若甲數比乙數的3倍少2，且乙數為 a ，則甲數為何？

Accepted Answer

3a - 2

Answer

3a + 2

Answer

$\frac{a + 2}{3}$

Answer

3( a - 2 )

Question 2

若一個二位數的十位數字為 3 ，個位數字為 x ，則此二位數的值可表示為何？

Accepted Answer

30 + x

Answer

30x

Answer

3 + x

Answer

3x

Question 3

下列一元一次式的化簡結果何者錯誤？

Accepted Answer

( 5 + 8z ) + 3z = 16z

Answer

5x + 3x = 8x

Answer

( 5x - 7 ) - ( 2 + 9x ) = -4x - 9

Answer

( 7 + 9z ) - 5z = 7 + 4z

Question 4

已知一塊長方形土地的長為 a 公尺，寬比長短 2 公尺，則其周長為多少公尺？

Accepted Answer

2 ( 2a -2 )

Answer

a( a - 2 )

Answer

2( a - 2 )

Answer

2( a + 2 )

Question 5

已知 5 年前父子年齡和為 50 歲，若今年父親 x 歲，則兒子今年多少歲？

Accepted Answer

60 - x

Answer

2( 50 - x) + 5

Answer

( 50 - x ) - 5

Answer

2( 50 + 5 ) - x

Question 6

化簡 x - { 6x + [ 3x - ( 8x - 7x )]}

Accepted Answer

-7x

Answer

-6x

Answer

7x

Answer

6x

Question 7

化簡 6 - ( x - 2 ) $\div$ $\frac{2}{3}$ + ( 2x + 9 ) $\div$ 3 的結果為何？

Accepted Answer

12 - $\frac{5}{6}$x

Answer

$\frac{1}{6}$x + 2

Answer

x + 12

Answer

72 - 5x

Question 8

化簡 -3( 2x + 4 ) + ( -3x + 1)( -4 ) = ？

Accepted Answer

6x - 16

Answer

6x + 8

Answer

6x + 5

Answer

-6x - 8

Question 9

化簡 $\frac{1}{5}$( 6 - 3x ) - $\frac{1}{3}$( 5 + 4x ) = ？

Accepted Answer

$\frac{-7-29x}{15}$

Answer

$\frac{-7}{15}$ + x

Answer

$\frac{-7+11x}{15}$

Answer

$\frac{-7}{15}$ - 7x

Question 10

當 x 為下列那一個數時，2x + 1 所得的值最小？

Accepted Answer

$\frac{-1}{2}$

Answer

$\frac{-1}{4}$

Answer

0

Answer

$\frac{1}{2}$

Related quizzes

Related quizzes