728 Times (728×) Multiplication Table
728 times table, 1 to 20
| 728 × 1 | 728 |
| 728 × 2 | 1,456 |
| 728 × 3 | 2,184 |
| 728 × 4 | 2,912 |
| 728 × 5 | 3,640 |
| 728 × 6 | 4,368 |
| 728 × 7 | 5,096 |
| 728 × 8 | 5,824 |
| 728 × 9 | 6,552 |
| 728 × 10 | 7,280 |
| 728 × 11 | 8,008 |
| 728 × 12 | 8,736 |
| 728 × 13 | 9,464 |
| 728 × 14 | 10,192 |
| 728 × 15 | 10,920 |
| 728 × 16 | 11,648 |
| 728 × 17 | 12,376 |
| 728 × 18 | 13,104 |
| 728 × 19 | 13,832 |
| 728 × 20 | 14,560 |
Patterns that help you remember it
- The last digits repeat in a cycle of 5: 8, 6, 4, 2, 0.
- Every answer is even, because 728 is even.
- Split it into tens and ones: 728 × k = 720 × k + 8 × k.
- Each answer is 728 more than the one before, so you can count on in steps of 728.
Building it from tables you already know
Every answer in the 728 times table is double the answer in the 364 times table: 364 × 6 = 2,184, so 728 × 6 = 4,368. To multiply 728 by 9, multiply by 10 and take one 728 away: 7,280 − 728 = 6,552. To multiply by 11, multiply by 10 and add one more 728: 7,280 + 728 = 8,008. Multiplying by 4 is doubling twice: 728 → 1,456 → 2,912.
Every multiple of 728 is at least 728, so there are none below 100 and 1 below 1,000. A number is in the 728 times table exactly when it divides by 728 with no remainder.
Odd, even and the last digit
Because 728 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: 728 × 10 = 7,280, and 728 × 100 = 72,800. Multiplying by 5 is half of multiplying by 10: half of 7,280 is 3,640.
Using the 728 times table to divide
Every fact also works backwards: because 728 × 7 = 5,096, you know 5,096 ÷ 728 = 7 and 5,096 ÷ 7 = 728. Practising the table and its division facts together halves the work.
728 times table practice worksheet
- 728 × 6 = ______
- 728 × 5 = ______
- 728 × 2 = ______
- 728 × 6 = ______
- 728 × 4 = ______
- 728 × 7 = ______
- 728 × 11 = ______
- 728 × 7 = ______
- 728 × 5 = ______
- 728 × 11 = ______
- 728 × 4 = ______
- 728 × 6 = ______
Answer key
- 4,368
- 3,640
- 1,456
- 4,368
- 2,912
- 5,096
- 8,008
- 5,096
- 3,640
- 8,008
- 2,912
- 4,368
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 728 pencils. How many pencils are in 9 boxes?
Answer
9 × 728 = 6,552 pencils. - Tickets cost $728 each. How much do 8 tickets cost?
Answer
8 × $728 = $5,824. - 3,640 chairs are set out in rows of 728. How many rows are there?
Answer
3,640 ÷ 728 = 5 rows. - A plant grows 728 millimetres a week. How much does it grow in 6 weeks?
Answer
6 × 728 = 4,368 millimetres.
Questions
What is 728 × 12?
8,736.
What is half of 728 × 8?
728 × 8 = 5,824, and half of that is 2,912, which is 728 × 4. Halving one factor halves the answer.
What is 728 times 0?
0. Any number multiplied by zero is zero, because zero groups of 728 contain nothing.
What is 728 × 7 and 728 × 8?
728 × 7 = 5,096 and 728 × 8 = 5,824. These two are the facts most people find hardest, so they are worth practising on their own.
Is 10,920 in the 728 times table?
Yes: 10,920 ÷ 728 = 15 with no remainder. 10,921 is not, because dividing it by 728 leaves a remainder of 1.
How do I learn the 728 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.