646 Times (646×) Multiplication Table
646 times table, 1 to 20
| 646 × 1 | 646 |
| 646 × 2 | 1,292 |
| 646 × 3 | 1,938 |
| 646 × 4 | 2,584 |
| 646 × 5 | 3,230 |
| 646 × 6 | 3,876 |
| 646 × 7 | 4,522 |
| 646 × 8 | 5,168 |
| 646 × 9 | 5,814 |
| 646 × 10 | 6,460 |
| 646 × 11 | 7,106 |
| 646 × 12 | 7,752 |
| 646 × 13 | 8,398 |
| 646 × 14 | 9,044 |
| 646 × 15 | 9,690 |
| 646 × 16 | 10,336 |
| 646 × 17 | 10,982 |
| 646 × 18 | 11,628 |
| 646 × 19 | 12,274 |
| 646 × 20 | 12,920 |
Patterns that help you remember it
- The last digits repeat in a cycle of 5: 6, 2, 8, 4, 0.
- Every answer is even, because 646 is even.
- Split it into tens and ones: 646 × k = 640 × k + 6 × k.
- Each answer is 646 more than the one before, so you can count on in steps of 646.
Building it from tables you already know
Every answer in the 646 times table is double the answer in the 323 times table: 323 × 6 = 1,938, so 646 × 6 = 3,876. To multiply 646 by 9, multiply by 10 and take one 646 away: 6,460 − 646 = 5,814. To multiply by 11, multiply by 10 and add one more 646: 6,460 + 646 = 7,106. Multiplying by 4 is doubling twice: 646 → 1,292 → 2,584.
Every multiple of 646 is at least 646, so there are none below 100 and 1 below 1,000. A number is in the 646 times table exactly when it divides by 646 with no remainder.
Odd, even and the last digit
Because 646 is even, every answer in its table is even, which is a quick way to catch a wrong answer. Multiplying by 10 always puts a zero on the end: 646 × 10 = 6,460, and 646 × 100 = 64,600. Multiplying by 5 is half of multiplying by 10: half of 6,460 is 3,230.
Using the 646 times table to divide
Every fact also works backwards: because 646 × 7 = 4,522, you know 4,522 ÷ 646 = 7 and 4,522 ÷ 7 = 646. Practising the table and its division facts together halves the work.
646 times table practice worksheet
- 646 × 10 = ______
- 646 × 11 = ______
- 646 × 10 = ______
- 646 × 6 = ______
- 646 × 7 = ______
- 646 × 7 = ______
- 646 × 7 = ______
- 646 × 7 = ______
- 646 × 12 = ______
- 646 × 3 = ______
- 646 × 11 = ______
- 646 × 5 = ______
Answer key
- 6,460
- 7,106
- 6,460
- 3,876
- 4,522
- 4,522
- 4,522
- 4,522
- 7,752
- 1,938
- 7,106
- 3,230
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 646 pencils. How many pencils are in 3 boxes?
Answer
3 × 646 = 1,938 pencils. - Tickets cost $646 each. How much do 4 tickets cost?
Answer
4 × $646 = $2,584. - 4,522 chairs are set out in rows of 646. How many rows are there?
Answer
4,522 ÷ 646 = 7 rows. - A plant grows 646 millimetres a week. How much does it grow in 11 weeks?
Answer
11 × 646 = 7,106 millimetres.
Questions
What is 646 × 12?
7,752.
What is half of 646 × 8?
646 × 8 = 5,168, and half of that is 2,584, which is 646 × 4. Halving one factor halves the answer.
What is 646 times 0?
0. Any number multiplied by zero is zero, because zero groups of 646 contain nothing.
What is 646 × 7 and 646 × 8?
646 × 7 = 4,522 and 646 × 8 = 5,168. These two are the facts most people find hardest, so they are worth practising on their own.
Is 9,690 in the 646 times table?
Yes: 9,690 ÷ 646 = 15 with no remainder. 9,691 is not, because dividing it by 646 leaves a remainder of 1.
How do I learn the 646 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.