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Maths trick

Times five: half of ten

To multiply by 5, multiply by 10 and halve the answer.

Ages 7–9

Worked example

Tap through the steps. Each step can be read aloud.

Step 1 of 4

5 × 8: 5 is half of 10.

Quick practice

Five fresh questions, marked straight away. Use the trick!

To multiply by 5, multiply by 10 and halve the answer.

More tricks

The nines trick

To multiply by 9, multiply by 10 and take one lot away.

Ages 8–10