647 Times (647×) Multiplication Table
647 times table, 1 to 20
| 647 × 1 | 647 |
| 647 × 2 | 1,294 |
| 647 × 3 | 1,941 |
| 647 × 4 | 2,588 |
| 647 × 5 | 3,235 |
| 647 × 6 | 3,882 |
| 647 × 7 | 4,529 |
| 647 × 8 | 5,176 |
| 647 × 9 | 5,823 |
| 647 × 10 | 6,470 |
| 647 × 11 | 7,117 |
| 647 × 12 | 7,764 |
| 647 × 13 | 8,411 |
| 647 × 14 | 9,058 |
| 647 × 15 | 9,705 |
| 647 × 16 | 10,352 |
| 647 × 17 | 10,999 |
| 647 × 18 | 11,646 |
| 647 × 19 | 12,293 |
| 647 × 20 | 12,940 |
Patterns that help you remember it
- The last digits repeat in a cycle of 10: 7, 4, 1, 8, 5, 2, 9, 6, 3, 0.
- Split it into tens and ones: 647 × k = 640 × k + 7 × k.
- Each answer is 647 more than the one before, so you can count on in steps of 647.
Building it from tables you already know
To multiply 647 by 9, multiply by 10 and take one 647 away: 6,470 − 647 = 5,823. To multiply by 11, multiply by 10 and add one more 647: 6,470 + 647 = 7,117. Multiplying by 4 is doubling twice: 647 → 1,294 → 2,588.
Every multiple of 647 is at least 647, so there are none below 100 and 1 below 1,000. A number is in the 647 times table exactly when it divides by 647 with no remainder.
Odd, even and the last digit
Because 647 is odd, the answers alternate between odd and even: 647 × 1 = 647 is odd, 647 × 2 = 1,294 is even, and so on. Multiplying by 10 always puts a zero on the end: 647 × 10 = 6,470, and 647 × 100 = 64,700. Multiplying by 5 is half of multiplying by 10: half of 6,470 is 3,235.
Using the 647 times table to divide
Every fact also works backwards: because 647 × 7 = 4,529, you know 4,529 ÷ 647 = 7 and 4,529 ÷ 7 = 647. Practising the table and its division facts together halves the work.
647 times table practice worksheet
- 647 × 10 = ______
- 647 × 5 = ______
- 647 × 4 = ______
- 647 × 6 = ______
- 647 × 4 = ______
- 647 × 12 = ______
- 647 × 11 = ______
- 647 × 11 = ______
- 647 × 2 = ______
- 647 × 8 = ______
- 647 × 3 = ______
- 647 × 3 = ______
Answer key
- 6,470
- 3,235
- 2,588
- 3,882
- 2,588
- 7,764
- 7,117
- 7,117
- 1,294
- 5,176
- 1,941
- 1,941
Word problems
Times tables are most useful when you can spot them in a question. Try these, then open each one to check:
- A box holds 647 pencils. How many pencils are in 3 boxes?
Answer
3 × 647 = 1,941 pencils. - Tickets cost $647 each. How much do 4 tickets cost?
Answer
4 × $647 = $2,588. - 5,823 chairs are set out in rows of 647. How many rows are there?
Answer
5,823 ÷ 647 = 9 rows. - A plant grows 647 millimetres a week. How much does it grow in 8 weeks?
Answer
8 × 647 = 5,176 millimetres.
Questions
What is 647 × 12?
7,764.
What is half of 647 × 8?
647 × 8 = 5,176, and half of that is 2,588, which is 647 × 4. Halving one factor halves the answer.
What is 647 times 0?
0. Any number multiplied by zero is zero, because zero groups of 647 contain nothing.
What is 647 × 7 and 647 × 8?
647 × 7 = 4,529 and 647 × 8 = 5,176. These two are the facts most people find hardest, so they are worth practising on their own.
Is 9,705 in the 647 times table?
Yes: 9,705 ÷ 647 = 15 with no remainder. 9,706 is not, because dividing it by 647 leaves a remainder of 1.
How do I learn the 647 times table quickly?
Learn it in order first, then use the patterns above and practise mixed questions; a few minutes a day works better than one long session.