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Solve Problems Using the Unitary Method

In this worksheet, students will solve problems using the unitary method.

Worksheet Overview

In this activity, we are using the unitary method to work out proportion problems.


You will need a calculator for this.



If a chocolate bar is 80p for 1, then we would expect to multiply 80p by the number of bars we want to buy.

If we want 3 bars then 3 x 80p = £2.40


We call this direct proportion - as one value rises so does the other!


carrot thumbs up


Likewise in reverse, if we only have the price for a number of items we can divide by that number to find the price of one!



A pack of 5 highlighters costs £3.50

What is the cost of one?


boy thinking



We divide by 5 here!

3.50 ÷ 5 = £0.70 each.

We could then work out the price for any number of highlighters from there by multiplying by £0.70!


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