CAEC Mathematics without a Calculator 3

Question 1

What is the perimeter of a square with a side length of 11 cm?

Accepted Answer

44 cm

Answer

Perimeter of a square = 4 × side = 4 × 11 = 44 cm.

Question 2

Which of the following is divisible by both 4 and 6?

Accepted Answer

24

Answer

24 is divisible by 4 (24÷4=6) and by 6 (24÷6=4). The LCM of 4 and 6 is 12, and 24 is a multiple of 12.

Question 3

A bag contains 5 red marbles, 3 blue marbles, and 2 green marbles. What is the probability of randomly drawing a blue marble?

Accepted Answer

3/10

Answer

Total marbles = 5+3+2 = 10. Probability of blue = 3/10.

Question 4

If n − 7 = 15, what is the value of n?

Accepted Answer

22

Answer

n = 15 + 7 = 22.

Question 5

What is the median of the following set of numbers: 3, 7, 9, 2, 5?

Accepted Answer

5

Answer

Arrange in order: 2, 3, 5, 7, 9. The middle value (3rd of 5) is 5.

(CAEC) Canadian Adult Education Credential Practice Test