KS3 20 times table - including 40, 100 and 380

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Maths Tables Quiz - The 20 Times Table (Questions)

Learn the 20 times table with place value tricks. Build speed and use twenty facts to scale measures, money, and time.

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Fascinating Fact:

A class of 20 students is 20 times larger than a one-to-one tutoring session.

In KS3 Maths, mastering the 20 times table is all about place value. Because 20 = 2 × 10, you can double a number and then add a zero, or use 20n = (10n) × 2 for quick mental calculations in measures, money, and time.

Key Terms

Multiple: A number in the 20 times table (20, 40, 60, 80, …).
Factor: A whole number that divides another exactly (for 20: 1, 2, 4, 5, 10, 20).
Place value: Using the value of digits (like tens) to make multiplication easier, e.g., 20 × n = 2 × (10 × n).

Want a quick drill before the FAQs? Try the Multiplication Game to test your 20× facts at speed.

Frequently Asked Questions (Click to see answers)

What is the easiest way to do 20 times a number?

Use place value: 20 × n = (2 × n) with a zero added, or 20 × n = (10 × n) × 2. Pick the one you can do fastest.

How can I tell if a number is a multiple of 20?

A number is a multiple of 20 if it is divisible by 4 and by 5. A quick check is that it ends in 0 and the tens digit is even.

Where do we use 20× in real life?

Pricing in twenties, packs of 20, time blocks of 20 minutes, scaling drawings, and converting measures often use 20× for fast mental maths.

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Maths Tables Quiz - The 20 Times Table (Questions)

Fascinating Fact:

Key Terms

Frequently Asked Questions (Click to see answers)

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