Math · Age 11 · Ratio & Proportion
Unitary Method (Ex. 1)
Recognise and use the unitary method: find 1 part, then scale to many parts.
Module
Ratio & Proportion
Age
Age 11
Duration
10 min
Questions
5
What's in this exercise
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Question 1
Multiple choice
12 oranges cost £3.60. How much do 5 oranges cost?
Question 2
Multiple choice
A factory produces 360 items in 8 hours. How many items does it produce in 5 hours?
Question 3
Multiple choice
7 identical pens cost £4.20. How much do 11 pens cost?
Question 4
Sequence
9 scarves cost £54. Find the cost of 4 scarves. Step 1: Cost of 1 scarf = 54 ÷ 9 = £6. Step 2: Cost of 4 = 4 × £6 = ___.
Question 5
True or false
The unitary method means you always first find the value for 1 unit before scaling up or down.