EASY
Upper Secondary: IGCSE
IMPORTANT
Earn 100

List the first five multiples of 18

Important Questions on Reviewing Number Concepts

EASY
Upper Secondary: IGCSE
IMPORTANT

Use a factor tree to express 400 as a product of prime factors.

EASY
Upper Secondary: IGCSE
IMPORTANT

Use the division method to express 1080 as a product of prime factors.

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

Find the LCM of 400 and 1080 by using the prime factors.

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

Find the HCF of 400 and 1080 by using the prime factors.