Sumwise

661 Times (661×) Multiplication Table

661 times table, 1 to 20

661 × 1661
661 × 21,322
661 × 31,983
661 × 42,644
661 × 53,305
661 × 63,966
661 × 74,627
661 × 85,288
661 × 95,949
661 × 106,610
661 × 117,271
661 × 127,932
661 × 138,593
661 × 149,254
661 × 159,915
661 × 1610,576
661 × 1711,237
661 × 1811,898
661 × 1912,559
661 × 2013,220

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: 661 × k = 660 × k + 1 × k.
  • Each answer is 661 more than the one before, so you can count on in steps of 661.

Building it from tables you already know

To multiply 661 by 9, multiply by 10 and take one 661 away: 6,610 − 661 = 5,949. To multiply by 11, multiply by 10 and add one more 661: 6,610 + 661 = 7,271. Multiplying by 4 is doubling twice: 661 → 1,322 → 2,644.

Every multiple of 661 is at least 661, so there are none below 100 and 1 below 1,000. A number is in the 661 times table exactly when it divides by 661 with no remainder.

Odd, even and the last digit

Because 661 is odd, the answers alternate between odd and even: 661 × 1 = 661 is odd, 661 × 2 = 1,322 is even, and so on. Multiplying by 10 always puts a zero on the end: 661 × 10 = 6,610, and 661 × 100 = 66,100. Multiplying by 5 is half of multiplying by 10: half of 6,610 is 3,305.

Using the 661 times table to divide

Every fact also works backwards: because 661 × 7 = 4,627, you know 4,627 ÷ 661 = 7 and 4,627 ÷ 7 = 661. Practising the table and its division facts together halves the work.

661 times table practice worksheet

  1. 661 × 12 = ______
  2. 661 × 11 = ______
  3. 661 × 11 = ______
  4. 661 × 10 = ______
  5. 661 × 11 = ______
  6. 661 × 6 = ______
  7. 661 × 9 = ______
  8. 661 × 2 = ______
  9. 661 × 3 = ______
  10. 661 × 1 = ______
  11. 661 × 7 = ______
  12. 661 × 10 = ______
Answer key
  1. 7,932
  2. 7,271
  3. 7,271
  4. 6,610
  5. 7,271
  6. 3,966
  7. 5,949
  8. 1,322
  9. 1,983
  10. 661
  11. 4,627
  12. 6,610

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 661 pencils. How many pencils are in 5 boxes?
    Answer5 × 661 = 3,305 pencils.
  2. Tickets cost $661 each. How much do 7 tickets cost?
    Answer7 × $661 = $4,627.
  3. 5,288 chairs are set out in rows of 661. How many rows are there?
    Answer5,288 ÷ 661 = 8 rows.
  4. A plant grows 661 millimetres a week. How much does it grow in 8 weeks?
    Answer8 × 661 = 5,288 millimetres.

About this page

The table, the patterns and the practice questions are all calculated for 661 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 661 × 12?

7,932.

What is half of 661 × 8?

661 × 8 = 5,288, and half of that is 2,644, which is 661 × 4. Halving one factor halves the answer.

What is 661 times 0?

0. Any number multiplied by zero is zero, because zero groups of 661 contain nothing.

What is 661 × 7 and 661 × 8?

661 × 7 = 4,627 and 661 × 8 = 5,288. These two are the facts most people find hardest, so they are worth practising on their own.

Is 9,915 in the 661 times table?

Yes: 9,915 ÷ 661 = 15 with no remainder. 9,916 is not, because dividing it by 661 leaves a remainder of 1.

How do I learn the 661 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.