Mathematics Quiz

Find the HCF of 24 and 36.

• 6

• 12

• 18

• 24

What is the LCM of 4, 6, and 8?

• 12

• 16

• 24

• 48

True/False: The LCM of two numbers is always greater than or equal to their HCF.

Which of the following numbers is NOT prime?

• 17

• 19

• 21

• 23

True/False: The only even prime number is 2.

How many prime numbers are there between 10 and 20?

• 3

• 4

• 2

• 5

Round 1456 to the nearest hundred.

• 1400

• 1500

• 1460

• 1600

How many significant figures are in the number 0.00450?

• 2

• 3

• 4

• 5

True/False: When rounding 6.49 to the nearest integer, the result is 6.

Estimate the product of 78 and 43 by rounding to the nearest ten.

• 3000

• 3500

• 3200

• 4000