Sumwise

840 Times (840×) Multiplication Table

840 times table, 1 to 20

840 × 1840
840 × 21,680
840 × 32,520
840 × 43,360
840 × 54,200
840 × 65,040
840 × 75,880
840 × 86,720
840 × 97,560
840 × 108,400
840 × 119,240
840 × 1210,080
840 × 1310,920
840 × 1411,760
840 × 1512,600
840 × 1613,440
840 × 1714,280
840 × 1815,120
840 × 1915,960
840 × 2016,800

Patterns that help you remember it

  • The last digits repeat in a cycle of 1: 0.
  • Every answer is even, because 840 is even.
  • Every answer ends in 0 or 5.
  • Split it into tens and ones: 840 × k = 840 × k + 0 × k.
  • Each answer is 840 more than the one before, so you can count on in steps of 840.

Building it from tables you already know

Every answer in the 840 times table is double the answer in the 420 times table: 420 × 6 = 2,520, so 840 × 6 = 5,040. To multiply 840 by 9, multiply by 10 and take one 840 away: 8,400 − 840 = 7,560. To multiply by 11, multiply by 10 and add one more 840: 8,400 + 840 = 9,240. Multiplying by 4 is doubling twice: 840 → 1,680 → 3,360.

Every multiple of 840 is at least 840, so there are none below 100 and 1 below 1,000. A number is in the 840 times table exactly when it divides by 840 with no remainder.

Odd, even and the last digit

Because 840 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: 840 × 10 = 8,400, and 840 × 100 = 84,000. Multiplying by 5 is half of multiplying by 10: half of 8,400 is 4,200.

Using the 840 times table to divide

Every fact also works backwards: because 840 × 7 = 5,880, you know 5,880 ÷ 840 = 7 and 5,880 ÷ 7 = 840. Practising the table and its division facts together halves the work.

840 times table practice worksheet

  1. 840 × 11 = ______
  2. 840 × 6 = ______
  3. 840 × 2 = ______
  4. 840 × 12 = ______
  5. 840 × 3 = ______
  6. 840 × 4 = ______
  7. 840 × 6 = ______
  8. 840 × 6 = ______
  9. 840 × 12 = ______
  10. 840 × 5 = ______
  11. 840 × 3 = ______
  12. 840 × 2 = ______
Answer key
  1. 9,240
  2. 5,040
  3. 1,680
  4. 10,080
  5. 2,520
  6. 3,360
  7. 5,040
  8. 5,040
  9. 10,080
  10. 4,200
  11. 2,520
  12. 1,680

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 840 pencils. How many pencils are in 6 boxes?
    Answer6 × 840 = 5,040 pencils.
  2. Tickets cost $840 each. How much do 4 tickets cost?
    Answer4 × $840 = $3,360.
  3. 5,880 chairs are set out in rows of 840. How many rows are there?
    Answer5,880 ÷ 840 = 7 rows.
  4. A plant grows 840 millimetres a week. How much does it grow in 11 weeks?
    Answer11 × 840 = 9,240 millimetres.

About this page

The table, the patterns and the practice questions are all calculated for 840 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 840 × 12?

10,080.

What is half of 840 × 8?

840 × 8 = 6,720, and half of that is 3,360, which is 840 × 4. Halving one factor halves the answer.

What is 840 times 0?

0. Any number multiplied by zero is zero, because zero groups of 840 contain nothing.

What is 840 × 7 and 840 × 8?

840 × 7 = 5,880 and 840 × 8 = 6,720. These two are the facts most people find hardest, so they are worth practising on their own.

Is 12,600 in the 840 times table?

Yes: 12,600 ÷ 840 = 15 with no remainder. 12,601 is not, because dividing it by 840 leaves a remainder of 1.

How do I learn the 840 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.