331 Times (331×) Multiplication Table
331 times table, 1 to 20
| 331 × 1 | 331 |
| 331 × 2 | 662 |
| 331 × 3 | 993 |
| 331 × 4 | 1,324 |
| 331 × 5 | 1,655 |
| 331 × 6 | 1,986 |
| 331 × 7 | 2,317 |
| 331 × 8 | 2,648 |
| 331 × 9 | 2,979 |
| 331 × 10 | 3,310 |
| 331 × 11 | 3,641 |
| 331 × 12 | 3,972 |
| 331 × 13 | 4,303 |
| 331 × 14 | 4,634 |
| 331 × 15 | 4,965 |
| 331 × 16 | 5,296 |
| 331 × 17 | 5,627 |
| 331 × 18 | 5,958 |
| 331 × 19 | 6,289 |
| 331 × 20 | 6,620 |
Patterns that help you remember it
- The last digits repeat in a cycle of 10: 1, 2, 3, 4, 5, 6, 7, 8, 9, 0.
- Split it into tens and ones: 331 × k = 330 × k + 1 × k.
- Each answer is 331 more than the one before, so you can count on in steps of 331.
Building it from tables you already know
To multiply 331 by 9, multiply by 10 and take one 331 away: 3,310 − 331 = 2,979. To multiply by 11, multiply by 10 and add one more 331: 3,310 + 331 = 3,641. Multiplying by 4 is doubling twice: 331 → 662 → 1,324.
Every multiple of 331 is at least 331, so there are none below 100 and 3 below 1,000. A number is in the 331 times table exactly when it divides by 331 with no remainder.
Odd, even and the last digit
Because 331 is odd, the answers alternate between odd and even: 331 × 1 = 331 is odd, 331 × 2 = 662 is even, and so on. Multiplying by 10 always puts a zero on the end: 331 × 10 = 3,310, and 331 × 100 = 33,100. Multiplying by 5 is half of multiplying by 10: half of 3,310 is 1,655.
Using the 331 times table to divide
Every fact also works backwards: because 331 × 7 = 2,317, you know 2,317 ÷ 331 = 7 and 2,317 ÷ 7 = 331. Practising the table and its division facts together halves the work.
331 times table practice worksheet
- 331 × 12 = ______
- 331 × 11 = ______
- 331 × 3 = ______
- 331 × 9 = ______
- 331 × 9 = ______
- 331 × 2 = ______
- 331 × 2 = ______
- 331 × 7 = ______
- 331 × 9 = ______
- 331 × 4 = ______
- 331 × 12 = ______
- 331 × 8 = ______
Answer key
- 3,972
- 3,641
- 993
- 2,979
- 2,979
- 662
- 662
- 2,317
- 2,979
- 1,324
- 3,972
- 2,648
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 331 pencils. How many pencils are in 7 boxes?
Answer
7 × 331 = 2,317 pencils. - Tickets cost $331 each. How much do 11 tickets cost?
Answer
11 × $331 = $3,641. - 2,648 chairs are set out in rows of 331. How many rows are there?
Answer
2,648 ÷ 331 = 8 rows. - A plant grows 331 millimetres a week. How much does it grow in 7 weeks?
Answer
7 × 331 = 2,317 millimetres.
Questions
What is 331 × 12?
3,972.
What is half of 331 × 8?
331 × 8 = 2,648, and half of that is 1,324, which is 331 × 4. Halving one factor halves the answer.
What is 331 times 0?
0. Any number multiplied by zero is zero, because zero groups of 331 contain nothing.
What is 331 × 7 and 331 × 8?
331 × 7 = 2,317 and 331 × 8 = 2,648. These two are the facts most people find hardest, so they are worth practising on their own.
Is 4,965 in the 331 times table?
Yes: 4,965 ÷ 331 = 15 with no remainder. 4,966 is not, because dividing it by 331 leaves a remainder of 1.
How do I learn the 331 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.