Algebra questions practice (10)

11+ Algebra Quiz

Wellington Primary School - Slough Grammar School Preparation

Based on GL Assessment Examination

GL ASSESSMENT SAMPLE PAPER A - MATHEMATICS

Time: 10 minutes

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Answer all questions. Show your working if necessary.

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Question 1

Simplify 8p − 3p + 2p

A) 7p

B) 13p

C) 7p³

D) 5p

Solution:

8p - 3p = 5p, then 5p + 2p = 7p

Question 2

If a = 6, what is the value of 2a + 7?

A) 15

B) 19

C) 26

D) 33

Solution:

2 × 6 + 7 = 12 + 7 = 19

Question 3

Solve for n: n − 12 = 8

A) n = 1.5

B) n = 4

C) n = 20

D) n = 96

Solution:

n = 8 + 12 = 20

Question 4

Solve for k: 4k = 36

A) k = 9

B) k = 32

C) k = 40

D) k = 144

Solution:

k = 36 ÷ 4 = 9

Question 5

Which expression means "8 less than triple a number x"?

A) 3x − 8

B) 8 − 3x

C) 3(x − 8)

D) 8x − 3

Solution:

Triple x is 3x, and 8 less than that is 3x - 8

Question 6

Solve for m: 2m + 9 = 21

A) m = 6

B) m = 12

C) m = 15

D) m = 24

Solution:

2m = 21 - 9 = 12, so m = 12 ÷ 2 = 6

Question 7

If x = 5 and y = 2, what is the value of x² − y?

A) 8

B) 9

C) 23

D) 27

Solution:

5² - 2 = 25 - 2 = 23

Question 8

Simplify 5x + 2y − x + 4y

A) 4x + 6y

B) 6x + 6y

C) 5x + 6y

D) 4x + 2y

Solution:

5x - x = 4x, 2y + 4y = 6y, so 4x + 6y

Question 9

I think of a number, divide it by 4 and get 5. What was my number?

A) 1

B) 9

C) 15

D) 20

Solution:

If n ÷ 4 = 5, then n = 5 × 4 = 20

Question 10

The perimeter of a square is 4 × side. If the perimeter is P and the side is s, which formula is correct?

A) s = P + 4

B) P = 4s

C) s = 4P

D) P = s + 4

Solution:

The perimeter of a square is 4 times the side length, so P = 4s

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