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Grade 3 · Maths · Lessons
Fives and tens
🖐️five🔟ten✖️times🪙nickel
Fives and tens.
The big ideaFive is half of ten. A ten is a ten.

How it works

Five is half of ten. Count in fives: 5, 10, 15, 20.

Ten times a number puts a zero after it: 10 × 3 = 30.

5 × 10 and 10 × 5 are the same.

051015202530354045505 × 5050
Counting by fives.

Example 1: Five tens

  1. 5 × 10 = ?
  2. Turn it around: 10 × 5.
  3. Ten fives or five tens: both are 50.
  4. So the answer is 50.

Example 2: Ten times

  1. 10 × 3 = ?
  2. Ten times 3 is 3 tens.
  3. 3 tens is 30.
  4. So the answer is 30.

Example 3: Five times one

  1. 5 × 1 = ?
  2. 5 × 1 is just 5.
  3. One group of 5.
  4. So the answer is 5.

Words to know

multiply
To add the same number many times.
product
The answer to a times question.

Watch out

Try it

  1. 5 × 1 = ?
  2. 1 × 5 = ?
  3. 90 ÷ 10 = ?
Answers: 1. 5 · 2. 5 · 3. 9
For grown-upsCount nickels and dimes together to practise fives and tens.
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