# Written Multiplication of Three-Digit Numbers by One-Digit

In this worksheet, students must carry out formal written multiplications of three-digit numbers by single-digit numbers. Carrying is involved.

Key stage:  KS 2

Curriculum topic:   Number: Multiplication and Division

Curriculum subtopic:   Use Written Form for Multiplication

Difficulty level:

### QUESTION 1 of 10

Written multiplication can be done step-by-step by setting out the calculation carefully and remembering to regroup if necessary.

Example

Work out

947 × 7

1. Rewrite the calculation vertically, like this:

2. Then multiply the numbers in the ones column together, so 7 × 7 = 49

Write the 9 in the ones column and regroup the 4 tens below in the tens column.

3. Next multiply the numbers in the tens column together, so 4 × 7 = 28 and add the 4 tens that were regrouped.

This gives us 28 + 4 = 32 , so we write the 2 in the tens column and regroup the 3 hundreds below in the hundreds column.

4. Lastly, multiply the numbers in the hundreds column, so 9 × 7 = 63 and add the 3 that was regrouped.

This gives us 63 + 3 = 66 in the thousands.

So, in full, we have:

So      947 × 7 = 6629

Want to understand this further and learn how this links to other topics in maths?
Why not watch this video?

Work out

232 × 3

Work out

232 × 4

Work out

223 × 4

Work out

253 × 5

Work out

368 × 5

Work out

432 × 6

Work out

608 × 7

Work out

719 × 8

Work out

593 × 8

Work out

888 × 9

• Question 1

Work out

232 × 3

696
EDDIE SAYS
1. Rewrite the calculation vertically. 2. Multiply the numbers in the ones column together, so 2 x 3 = 6. 3. Next multiply the numbers in the tens column together, so 3 x 3 = 9. 4. Lastly, multiply the numbers in the hundreds column together, so 2 x 3 = 6. Answer: 696
• Question 2

Work out

232 × 4

928
EDDIE SAYS
1. Rewrite the calculation vertically. 2. Multiply the numbers in the ones column together, so 2 x 4 = 8. 3. Next multiply the numbers in the tens column together, so 3 x 4 = 12. Remember to write the 2 in the tens column and regroup the 1 hundred below into the hundreds column. 4. Lastly, multiply the hundreds, so 2 x 4 = 8 and add the 1 hundred that was regrouped. That gives us 8 + 1 = 9 in the hundreds. Answer: 928
• Question 3

Work out

223 × 4

892
EDDIE SAYS
1. Rewrite the calculation vertically. 2. Multiply the numbers in the ones column together, so 3 x 4 = 12. Write the 2 in the ones column and regroup the 1 ten below in the tens column. 3. Next multiply the numbers in the tens column together, so 2 x 4 = 8. Remember to add the regrouped 1, so 8 + 1 = 9. Write 9 in the tens column. 4. Lastly, multiply the hundreds, so 2 x 4 = 8. Write 8 in the hundreds column. Answer: 892
• Question 4

Work out

253 × 5

1265
EDDIE SAYS
1. Rewrite the calculation vertically. 2. Multiply the numbers in the ones column together, so 3 x 5 = 15. Write the 5 in the ones column and regroup the 1 ten below in the tens column. 3. Next multiply the numbers in the tens column together, so 5 x 5 = 25. Remember to add the regrouped 1, so 25 + 1 = 26. Write 6 in the tens column and regroup the 2 hundreds below in the hundreds column. 4. Lastly, multiply the hundreds, so 2 x 5 = 10. Remember to add the regrouped 2, so 10 + 2 = 12. Write the 2 in the hundreds column and the 1 in the thousands column. Answer: 1265
• Question 5

Work out

368 × 5

1840
EDDIE SAYS
1. Rewrite the calculation vertically. 2. Multiply the numbers in the ones column together, so 8 x 5 = 40. Write the 0 in the ones column and regroup the 4 tens below in the tens column. 3. Next multiply the numbers in the tens column together, so 6 x 5 = 30. Remember to add the regrouped 4 tens, so 30 + 4 = 34. Write 4 in the tens column and regroup the 3 hundreds below in the hundreds column. 4. Lastly, multiply the hundreds, so 3 x 5 = 15. Remember to add the regrouped 3, so 15 + 3 = 18. Write the 8 in the hundreds column and the 1 in the thousands column. Answer: 1840
• Question 6

Work out

432 × 6

2592
EDDIE SAYS
1. Rewrite the calculation vertically. 2. Multiply the numbers in the ones column together, so 2 x 6 = 12. Write the 2 in the ones column and regroup the 1 ten below in the tens column. 3. Next multiply the numbers in the tens column together, so 3 x 6 = 18. Remember to add the regrouped 1, so 18 + 1 = 19. Write 9 in the tens column and regroup the 1 hundred below in the hundreds column. 4. Lastly, multiply the hundreds, so 4 x 6 = 24. Remember to add the regrouped 1, so 24 + 1 = 25. Write the 5 in the hundreds column and the 2 in the thousands column. Answer: 2592
• Question 7

Work out

608 × 7

4256
EDDIE SAYS
1. Rewrite the calculation vertically. 2. Multiply the numbers in the ones column together, so 8 x 7 = 56. Write the 6 in the ones column and regroup the 5 tens below in the tens column. 3. Next multiply the numbers in the tens column together, so 0 x 7 = 0. Remember to add the regrouped 5 tens, so 0 + 5 = 5. Write 5 in the tens column. 4. Lastly, multiply the hundreds, so 6 x 7 = 42. There is no regrouping to add in the hundreds column. Write the 2 in the hundreds column and the 4 in the thousands column. Answer: 4256
• Question 8

Work out

719 × 8

5752
EDDIE SAYS
1. Rewrite the calculation vertically. 2. Multiply the numbers in the ones column together, so 9 x 8 = 72. Write the 2 in the ones column and regroup the 7 tens below in the tens column. 3. Next multiply the numbers in the tens column together, so 1 x 8 = 8. Remember to add the regrouped 7 tens, so 8 + 7 = 15. Write 5 in the tens column and regroup the 1 hundred below in the hundreds column. 4. Lastly, multiply the hundreds, so 7 x 8 = 56. Remember to add the regrouped 1, so 56 + 1 = 57. Write the 7 in the hundreds column and the 5 in the thousands column. Answer: 5752
• Question 9

Work out

593 × 8

4744
EDDIE SAYS
1. Rewrite the calculation vertically. 2. Multiply the numbers in the ones column together, so 3 x 8 = 24. Write the 4 in the ones column and regroup the 2 tens below in the tens column. 3. Next multiply the numbers in the tens column together, so 9 x 8 = 72. Remember to add the regrouped 2 tens, so 72 + 2 = 74. Write 4 in the tens column and regroup the 7 hundreds below in the hundreds column. 4. Lastly, multiply the hundreds, so 5 x 8 = 40. Remember to add the regrouped 7, so 40 + 7 = 47. Write the 7 in the hundreds column and the 4 in the thousands column. Answer: 4744
• Question 10

Work out

888 × 9

7992
EDDIE SAYS
1. Rewrite the calculation vertically. 2. Multiply the numbers in the ones column together, so 8 x 9 = 72. Write the 2 in the ones column and regroup the 7 tens below in the tens column. 3. Next multiply the numbers in the tens column together, so 8 x 9 = 72. Remember to add the regrouped 7 tens, so 72 + 7 = 79. Write 9 in the tens column and regroup the 7 hundreds below in the hundreds column. 4. Lastly, multiply the hundreds, so 8 x 9 = 72. Remember to add the regrouped 7, so 72 + 7 = 79. Write the 9 in the hundreds column and the 7 in the thousands column. Answer: 7992
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