Sumwise

1665 Times (1665×) Multiplication Table

1665 times table, 1 to 20

1665 × 11,665
1665 × 23,330
1665 × 34,995
1665 × 46,660
1665 × 58,325
1665 × 69,990
1665 × 711,655
1665 × 813,320
1665 × 914,985
1665 × 1016,650
1665 × 1118,315
1665 × 1219,980
1665 × 1321,645
1665 × 1423,310
1665 × 1524,975
1665 × 1626,640
1665 × 1728,305
1665 × 1829,970
1665 × 1931,635
1665 × 2033,300

Patterns that help you remember it

  • The last digits repeat in a cycle of 2: 5, 0.
  • The digits of every answer add up to a multiple of 9.
  • Every answer ends in 0 or 5.
  • Split it into tens and ones: 1665 × k = 1660 × k + 5 × k.
  • Each answer is 1665 more than the one before, so you can count on in steps of 1665.

Building it from tables you already know

To multiply 1665 by 9, multiply by 10 and take one 1665 away: 16,650 − 1665 = 14,985. To multiply by 11, multiply by 10 and add one more 1665: 16,650 + 1665 = 18,315. Multiplying by 4 is doubling twice: 1665 → 3,330 → 6,660.

Every multiple of 1665 is at least 1665, so there are none below 100 and 0 below 1,000. A number is in the 1665 times table exactly when it divides by 1665 with no remainder.

Odd, even and the last digit

Because 1665 is odd, the answers alternate between odd and even: 1665 × 1 = 1665 is odd, 1665 × 2 = 3,330 is even, and so on. Multiplying by 10 always puts a zero on the end: 1665 × 10 = 16,650, and 1665 × 100 = 166,500. Multiplying by 5 is half of multiplying by 10: half of 16,650 is 8,325.

Using the 1665 times table to divide

Every fact also works backwards: because 1665 × 7 = 11,655, you know 11,655 ÷ 1665 = 7 and 11,655 ÷ 7 = 1665. Practising the table and its division facts together halves the work.

1665 times table practice worksheet

  1. 1665 × 8 = ______
  2. 1665 × 5 = ______
  3. 1665 × 10 = ______
  4. 1665 × 1 = ______
  5. 1665 × 1 = ______
  6. 1665 × 7 = ______
  7. 1665 × 4 = ______
  8. 1665 × 3 = ______
  9. 1665 × 3 = ______
  10. 1665 × 4 = ______
  11. 1665 × 1 = ______
  12. 1665 × 3 = ______
Answer key
  1. 13,320
  2. 8,325
  3. 16,650
  4. 1,665
  5. 1,665
  6. 11,655
  7. 6,660
  8. 4,995
  9. 4,995
  10. 6,660
  11. 1,665
  12. 4,995

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 1665 pencils. How many pencils are in 4 boxes?
    Answer4 × 1665 = 6,660 pencils.
  2. Tickets cost $1665 each. How much do 9 tickets cost?
    Answer9 × $1665 = $14,985.
  3. 6,660 chairs are set out in rows of 1665. How many rows are there?
    Answer6,660 ÷ 1665 = 4 rows.
  4. A plant grows 1665 millimetres a week. How much does it grow in 7 weeks?
    Answer7 × 1665 = 11,655 millimetres.

About this page

The table, the patterns and the practice questions are all calculated for 1665 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 1665 × 12?

19,980.

What is half of 1665 × 8?

1665 × 8 = 13,320, and half of that is 6,660, which is 1665 × 4. Halving one factor halves the answer.

What is 1665 times 0?

0. Any number multiplied by zero is zero, because zero groups of 1665 contain nothing.

What is 1665 × 7 and 1665 × 8?

1665 × 7 = 11,655 and 1665 × 8 = 13,320. These two are the facts most people find hardest, so they are worth practising on their own.

Is 24,975 in the 1665 times table?

Yes: 24,975 ÷ 1665 = 15 with no remainder. 24,976 is not, because dividing it by 1665 leaves a remainder of 1.

How do I learn the 1665 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.