Sumwise

1681 Times (1681×) Multiplication Table

1681 times table, 1 to 20

1681 × 11,681
1681 × 23,362
1681 × 35,043
1681 × 46,724
1681 × 58,405
1681 × 610,086
1681 × 711,767
1681 × 813,448
1681 × 915,129
1681 × 1016,810
1681 × 1118,491
1681 × 1220,172
1681 × 1321,853
1681 × 1423,534
1681 × 1525,215
1681 × 1626,896
1681 × 1728,577
1681 × 1830,258
1681 × 1931,939
1681 × 2033,620

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: 1681 × k = 1680 × k + 1 × k.
  • Each answer is 1681 more than the one before, so you can count on in steps of 1681.

Building it from tables you already know

To multiply 1681 by 9, multiply by 10 and take one 1681 away: 16,810 − 1681 = 15,129. To multiply by 11, multiply by 10 and add one more 1681: 16,810 + 1681 = 18,491. Multiplying by 4 is doubling twice: 1681 → 3,362 → 6,724.

Every multiple of 1681 is at least 1681, so there are none below 100 and 0 below 1,000. A number is in the 1681 times table exactly when it divides by 1681 with no remainder.

Odd, even and the last digit

Because 1681 is odd, the answers alternate between odd and even: 1681 × 1 = 1681 is odd, 1681 × 2 = 3,362 is even, and so on. Multiplying by 10 always puts a zero on the end: 1681 × 10 = 16,810, and 1681 × 100 = 168,100. Multiplying by 5 is half of multiplying by 10: half of 16,810 is 8,405.

Using the 1681 times table to divide

Every fact also works backwards: because 1681 × 7 = 11,767, you know 11,767 ÷ 1681 = 7 and 11,767 ÷ 7 = 1681. Practising the table and its division facts together halves the work.

1681 times table practice worksheet

  1. 1681 × 9 = ______
  2. 1681 × 10 = ______
  3. 1681 × 1 = ______
  4. 1681 × 1 = ______
  5. 1681 × 8 = ______
  6. 1681 × 1 = ______
  7. 1681 × 7 = ______
  8. 1681 × 6 = ______
  9. 1681 × 8 = ______
  10. 1681 × 1 = ______
  11. 1681 × 8 = ______
  12. 1681 × 10 = ______
Answer key
  1. 15,129
  2. 16,810
  3. 1,681
  4. 1,681
  5. 13,448
  6. 1,681
  7. 11,767
  8. 10,086
  9. 13,448
  10. 1,681
  11. 13,448
  12. 16,810

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 1681 pencils. How many pencils are in 3 boxes?
    Answer3 × 1681 = 5,043 pencils.
  2. Tickets cost $1681 each. How much do 5 tickets cost?
    Answer5 × $1681 = $8,405.
  3. 11,767 chairs are set out in rows of 1681. How many rows are there?
    Answer11,767 ÷ 1681 = 7 rows.
  4. A plant grows 1681 millimetres a week. How much does it grow in 12 weeks?
    Answer12 × 1681 = 20,172 millimetres.

About this page

The table, the patterns and the practice questions are all calculated for 1681 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 1681 × 12?

20,172.

What is half of 1681 × 8?

1681 × 8 = 13,448, and half of that is 6,724, which is 1681 × 4. Halving one factor halves the answer.

What is 1681 times 0?

0. Any number multiplied by zero is zero, because zero groups of 1681 contain nothing.

What is 1681 × 7 and 1681 × 8?

1681 × 7 = 11,767 and 1681 × 8 = 13,448. These two are the facts most people find hardest, so they are worth practising on their own.

Is 25,215 in the 1681 times table?

Yes: 25,215 ÷ 1681 = 15 with no remainder. 25,216 is not, because dividing it by 1681 leaves a remainder of 1.

How do I learn the 1681 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.