Written Multiplication of Two-Digit Numbers by One-Digit

In this worksheet, students must carry out formal written multiplications of two-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

78 × 7

1. Rewrite the calculation vertically, like this:

2. Then multiply the numbers in the ones column together, so 8 × 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 7 × 7 = 49 and add the 5 that was regrouped.

This gives us 49 + 5 = 54, so we write the 4 in the tens column and the 5 in the hundreds column.

So      78 × 7 = 546

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Work out

32 × 4

Work out

23 × 4

Work out

35 × 3

Work out

62 × 5

Work out

74 × 5

Work out

46 × 6

Work out

36 × 7

Work out

67 × 8

Work out

49 × 7

Work out

68 × 9

• Question 1

Work out

32 × 4

128
EDDIE SAYS
1. Rewrite the calculation vertically. 2. Multiply the numbers in the ones column together, so 2 x 4 = 8. Write the 8 in the ones column. 3. Next multiply the numbers in the tens column together, so 3 x 4 = 12. Write the 2 in the tens column and the 1 in the hundreds column. Answer: 128
• Question 2

Work out

23 × 4

92
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. Answer: 92
• Question 3

Work out

35 × 3

105
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 3 x 3 = 9. Remember to add the regrouped 1, so 9 + 1 = 10. Write 0 in the tens column and the 1 in the hundreds column. Answer: 105
• Question 4

Work out

62 × 5

310
EDDIE SAYS
1. Rewrite the calculation vertically. 2. Multiply the numbers in the ones column together, so 2 x 5 = 10. Write the 0 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 6 x 5 = 30. Remember to add the regrouped 1, so 30 + 1 = 31. Write 1 in the tens column and 3 in the hundreds column. Answer: 310
• Question 5

Work out

74 × 5

370
EDDIE SAYS
1. Rewrite the calculation vertically. 2. Multiply the numbers in the ones column together, so 4 x 5 = 20. Write the 0 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 7 x 5 = 35. Remember to add the regrouped 2 tens, so 35 + 2 = 37. Write 7 in the tens 3 in the hundreds column. Answer: 370
• Question 6

Work out

46 × 6

276
EDDIE SAYS
1. Rewrite the calculation vertically. 2. Multiply the numbers in the ones column together, so 6 x 6 = 36. Write the 6 in the ones column and regroup the 3 tens below in the tens column. 3. Next multiply the numbers in the tens column together, so 4 x 6 = 24. Remember to add the regrouped 3, so 24 + 3 = 27. Write 7 in the tens column and 2 in the hundreds column. Answer: 276
• Question 7

Work out

36 × 7

252
EDDIE SAYS
1. Rewrite the calculation vertically. 2. Multiply the numbers in the ones column together, so 6 x 7 = 42. Write the 2 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 3 x 7 = 21. Remember to add the regrouped 4, so 21 + 4 = 25. Write 5 in the tens column and the 2 in the hundreds column. Answer: 252
• Question 8

Work out

67 × 8

536
EDDIE SAYS
1. Rewrite the calculation vertically. 2. Multiply the numbers in the ones column together, so 7 x 8 = 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 6 x 8 = 48. Remember to add the regrouped 5, so 48 + 5 = 53. Write 3 in the tens column and the 5 in the hundreds column. Answer: 536
• Question 9

Work out

49 × 7

343
EDDIE SAYS
1. Rewrite the calculation vertically. 2. Multiply the numbers in the ones column together, so 9 x 7 = 63. Write the 3 in the ones column and regroup the 6 tens below in the tens column. 3. Next multiply the numbers in the tens column together, so 4 x 7 = 28. Remember to add the regrouped 6, so 28 + 6 = 34. Write 4 in the tens column the 3 in the hundreds column. Answer: 343
• Question 10

Work out

68 × 9

612
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 6 x 9 = 54. Remember to add the regrouped 7, so 54 + 7 = 61. Write 1 in the tens column and the 6 in the hundreds column. Answer: 612
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