Doubles Facts Games Online Free
Add a number to itself, from 1 + 1 up to 10 + 10. Doubles are the first facts most children learn by heart.
Type answers on your keyboard, or tap the number pad.
Practise these again:
What are doubles facts?
A doubles fact adds a number to itself, like 4 + 4 = 8 or 7 + 7 = 14. There are only ten of them up to 10 + 10, so they’re quick to learn.
Once doubles come instantly, children can use them to solve other sums. For example, 6 + 7 is double 6 plus one more. That strategy has its own game: near doubles.
How to play Doubles Facts
- Choose the 60-second challenge or untimed practice, then press Start.
- Type each answer on your keyboard or tap the number pad. It’s checked as soon as you’ve typed enough digits, or press ✓.
- Get one wrong and you’ll see the right answer, and the question comes back a little later.
- At the end, check your score and the facts to practise again.
Doubles Facts skills
- Doubles facts from 1 + 1 to 10 + 10
- Recalling sums without counting
- Ready for near doubles like 6 + 7
Level: Kindergarten–Grade 1 (ages 5–7)
Tips for learning doubles
Look for doubles around you: 2 eyes, 4 wheels on a car (2 + 2), 8 legs on a spider (4 + 4), 10 fingers (5 + 5).
Every double is an even number, and doubles go up in twos: 2, 4, 6, 8, 10, 12…
The trickiest doubles are usually 6 + 6, 7 + 7 and 8 + 8. Say them out loud until they stick.
| 1 + 1 | 2 |
|---|---|
| 2 + 2 | 4 |
| 3 + 3 | 6 |
| 4 + 4 | 8 |
| 5 + 5 | 10 |
| 6 + 6 | 12 |
| 7 + 7 | 14 |
| 8 + 8 | 16 |
| 9 + 9 | 18 |
| 10 + 10 | 20 |
Doubles Facts questions and answers
Why are doubles facts important?
Doubles are easy to remember, and many other facts can be worked out from them. Near doubles (7 + 8), halving (half of 14) and the 2 times table all build on doubles.
What age learns doubles?
Children usually start doubles in kindergarten and know them to 10 + 10 by the end of first grade (Year 1 or Year 2 in the UK).
Are doubles the same as the 2 times table?
Yes. Doubling a number is the same as multiplying it by 2, so 8 + 8 and 2 × 8 are both 16.