Math · Age 11 · Multiplication & Division
Factors, Multiples & Simplifying Calculations (Ex. 3)
Solve multi-step problems using factors, multiples, and known number facts strategically.
Module
Multiplication & Division
Age
Age 11
Duration
10 min
Questions
5
What's in this exercise
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Question 1
Multiple choice
A shop sells items for £125 each. Using factors, calculate 125 × 32. (Hint: 125 × 8 = 1,000)
Question 2
Multiple choice
By factorising: 36 × 25 = 9 × 4 × 25 = 9 × 100 = ?
Question 3
Multiple choice
Use known facts: if 8 × 9 = 72, then 8,000 × 900 = ?
Question 4
Sequence
Use factors to simplify: 15 × 24 = 15 × (8 × 3) = (15 × 3) × 8 = 45 × 8 = ___.
Question 5
True or false
Factorising a number into its prime factors can help simplify multiplication and division.