Sumwise

1815 Times (1815×) Multiplication Table

1815 times table, 1 to 20

1815 × 11,815
1815 × 23,630
1815 × 35,445
1815 × 47,260
1815 × 59,075
1815 × 610,890
1815 × 712,705
1815 × 814,520
1815 × 916,335
1815 × 1018,150
1815 × 1119,965
1815 × 1221,780
1815 × 1323,595
1815 × 1425,410
1815 × 1527,225
1815 × 1629,040
1815 × 1730,855
1815 × 1832,670
1815 × 1934,485
1815 × 2036,300

Patterns that help you remember it

  • The last digits repeat in a cycle of 2: 5, 0.
  • Every answer ends in 0 or 5.
  • Split it into tens and ones: 1815 × k = 1810 × k + 5 × k.
  • Each answer is 1815 more than the one before, so you can count on in steps of 1815.

Building it from tables you already know

To multiply 1815 by 9, multiply by 10 and take one 1815 away: 18,150 − 1815 = 16,335. To multiply by 11, multiply by 10 and add one more 1815: 18,150 + 1815 = 19,965. Multiplying by 4 is doubling twice: 1815 → 3,630 → 7,260.

Every multiple of 1815 is at least 1815, so there are none below 100 and 0 below 1,000. A number is in the 1815 times table exactly when it divides by 1815 with no remainder.

Odd, even and the last digit

Because 1815 is odd, the answers alternate between odd and even: 1815 × 1 = 1815 is odd, 1815 × 2 = 3,630 is even, and so on. Multiplying by 10 always puts a zero on the end: 1815 × 10 = 18,150, and 1815 × 100 = 181,500. Multiplying by 5 is half of multiplying by 10: half of 18,150 is 9,075.

Using the 1815 times table to divide

Every fact also works backwards: because 1815 × 7 = 12,705, you know 12,705 ÷ 1815 = 7 and 12,705 ÷ 7 = 1815. Practising the table and its division facts together halves the work.

1815 times table practice worksheet

  1. 1815 × 11 = ______
  2. 1815 × 4 = ______
  3. 1815 × 10 = ______
  4. 1815 × 6 = ______
  5. 1815 × 12 = ______
  6. 1815 × 8 = ______
  7. 1815 × 1 = ______
  8. 1815 × 9 = ______
  9. 1815 × 3 = ______
  10. 1815 × 1 = ______
  11. 1815 × 8 = ______
  12. 1815 × 7 = ______
Answer key
  1. 19,965
  2. 7,260
  3. 18,150
  4. 10,890
  5. 21,780
  6. 14,520
  7. 1,815
  8. 16,335
  9. 5,445
  10. 1,815
  11. 14,520
  12. 12,705

Word problems

Times tables are most useful when you can spot them in a question. Try these, then open each one to check:

  1. A box holds 1815 pencils. How many pencils are in 9 boxes?
    Answer9 × 1815 = 16,335 pencils.
  2. Tickets cost $1815 each. How much do 4 tickets cost?
    Answer4 × $1815 = $7,260.
  3. 16,335 chairs are set out in rows of 1815. How many rows are there?
    Answer16,335 ÷ 1815 = 9 rows.
  4. A plant grows 1815 millimetres a week. How much does it grow in 11 weeks?
    Answer11 × 1815 = 19,965 millimetres.

About this page

The table, the patterns and the practice questions are all calculated for 1815 when the page is opened, so every fact on it is exact. Use the options above the worksheet to change the number of questions or the largest multiplier.

Questions

What is 1815 × 12?

21,780.

What is half of 1815 × 8?

1815 × 8 = 14,520, and half of that is 7,260, which is 1815 × 4. Halving one factor halves the answer.

What is 1815 times 0?

0. Any number multiplied by zero is zero, because zero groups of 1815 contain nothing.

What is 1815 × 7 and 1815 × 8?

1815 × 7 = 12,705 and 1815 × 8 = 14,520. These two are the facts most people find hardest, so they are worth practising on their own.

Is 27,225 in the 1815 times table?

Yes: 27,225 ÷ 1815 = 15 with no remainder. 27,226 is not, because dividing it by 1815 leaves a remainder of 1.

How do I learn the 1815 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.