Fascinating Fact:
A sports day lap of 400 metres done 18 times is 7,200 metres, that is 18 × 400 m = 7.2 km.
In KS3 Maths, the 18 times table builds speed with scaling. Use patterns like 18 = 9 × 2, round-and-adjust 20n − 2n, or double 9n to solve questions in measurement, area, and ratio.
Key Terms
- Multiple: A number in the 18 times table (18, 36, 54, 72, …).
- Factor pair: Two whole numbers multiplied to make another (for 18: 1×18, 2×9, 3×6).
- Round and adjust: A strategy using a nearby easy fact, then correcting (e.g., 20n − 2n).
Ready to practise before the FAQs? Sharpen recall with the
Multiplication Game
and time yourself on 18× facts.
Frequently Asked Questions (Click to see answers)
What are easy tricks for the 18 times table?
Use 18 × n = (9 × n) × 2, or round and adjust: 18 × n = (20 × n) − (2 × n). Doubling 9n is quick once you know your 9s.
Is there a quick test for multiples of 18?
Yes. A number is a multiple of 18 if it is even and its digit sum is a multiple of 9. (18 = 2 × 9, so it must pass both checks.)
Where do we use 18× in real life?
Athletics laps, packs of 18 items, grid arrays like 3 × 6, tiling and area scaling, and time calculations such as 18-minute intervals all use 18× facts.
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