01 / Doubles
2 × k = k + k
Double 7 is 7 + 7 = 14. Adding a number to itself is multiplying it by 2.
Free tool
The 2 times table runs 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24. Each answer is the number doubled. Read the table, hide the answers, take a scored quiz that shows the doubling for any wrong answer, or print a chart or practice sheet. No sign-up and no limit.
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How it works
01 / Doubles
Double 7 is 7 + 7 = 14. Adding a number to itself is multiplying it by 2.
02 / Last digits
The ones digit cycles through the even digits and starts again every five steps.
03 / All even
Every answer in the table is an even number, and every even number is in it.
Guide
The 2 times table is the doubling table: 2 × 6 is 6 + 6 = 12, and 2 × 12 is 12 + 12 = 24. The answers are 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24 up to 2 × 12. It is usually the first table learned after counting, and it feeds the 4 and 8 tables, which are doubles of doubles. The tool above shows the table, hides answers for a self-test, runs a scored quiz and prints a chart or sheet.
| Sum | Answer | A way to work it out |
|---|---|---|
| 2 × 1 | 2 | Double 1: 1 + 1 = 2 |
| 2 × 2 | 4 | Double 2: 2 + 2 = 4 |
| 2 × 3 | 6 | Double 3: 3 + 3 = 6 |
| 2 × 4 | 8 | Double 4: 4 + 4 = 8 |
| 2 × 5 | 10 | Double 5: 5 + 5 = 10 |
| 2 × 6 | 12 | Double 6: 6 + 6 = 12 |
| 2 × 7 | 14 | Double 7: 7 + 7 = 14 |
| 2 × 8 | 16 | Double 8: 8 + 8 = 16 |
| 2 × 9 | 18 | Double 9: 9 + 9 = 18 |
| 2 × 10 | 20 | Double 10: 10 + 10 = 20 |
| 2 × 11 | 22 | Double 11: 11 + 11 = 22 |
| 2 × 12 | 24 | Double 12: 12 + 12 = 24 |
Doubling and halving are the same table read in two directions. 2 × 9 = 18, so half of 18 is 9. To test it, take any answer in the table and halve it: 14 is 2 × 7, so half of 14 is 7. If you can double and halve numbers up to 12, you know the whole table.
A number is even if it is in the 2 times table, and you can tell by its last digit. If a whole number ends in 0, 2, 4, 6 or 8, it is a multiple of 2. 346 ends in 6, so it is even: 346 = 2 × 173. 2,157 ends in 7, so it is not.
The ones digits go 2, 4, 6, 8, 0, then 2, 4, 6, 8, 0 again: 2 × 5 = 10 ends in 0 and 2 × 6 = 12 ends in 2.
Double the 2 table and you have the 4 table: 4 × 7 = 28 is 2 × 7 = 14 doubled. Double again and you have the 8 table: 8 × 7 = 56. Learning 2 well makes the next two tables much shorter.
Set Go up to to 20 and the tool shows these as well. For any of them, split the number: 2 × 13 is 2 × 10 plus 2 × 3, which is 20 + 6 = 26.
| Sum | Answer |
|---|---|
| 2 × 13 | 26 |
| 2 × 14 | 28 |
| 2 × 15 | 30 |
| 2 × 16 | 32 |
| 2 × 17 | 34 |
| 2 × 18 | 36 |
| 2 × 19 | 38 |
| 2 × 20 | 40 |
If you can count in twos, you have the table. Say it up and down, then hide the answers and test yourself. When it is quick, go on to the 3 and 4 times tables.
Next, try the 3 times table, or go back to the 1 times table. To see every table in one grid, use the times tables chart. To make your own cards, try the flashcard maker.
Questions
2 × 2 = 4.
2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24.
Because multiplying by 2 doubles the number, and a doubled whole number can always be split into two equal halves.
Look at the last digit. If it is 0, 2, 4, 6 or 8, the number is even and in the table.
Yes. Doubling 15 gives 30, and 2 × 15 = 30.
Yes. Tick Include division, and the quiz asks questions such as 18 ÷ 2 = 9.