Maths Library

Long Multiplication: Year 5 maths

Develop multi-digit written multiplication using standard columnar methods. Worksheets progress from two-digit by two-digit integers to multi-digit and decimal calculations.

Open in full editor

What this covers

Long Multiplication is taught in Year 5 (age 10 to 11) as a main teaching focus. It sits in the Number strand.

Worked example

Calculate 34 × 26

  1. Multiply 34 by 6: 34 × 6 = 204
  2. Multiply 34 by 20: 34 × 20 = 680
  3. Add the partial products: 204 + 680 = 884

Answer: 884

Difficulty scale

The sheet generator offers five difficulty settings for this topic.

  1. 2-digit by 2-digit numbers with no regrouping required
  2. 2-digit by 2-digit numbers with regrouping required
  3. 3-digit by 2-digit numbers
  4. 4-digit by 2-digit numbers
  5. Multi-digit by 3-digit numbers or calculations involving 1 decimal place

Common mistakes

  • Forgetting the placeholder zero in the second row when multiplying by the tens digit
  • Adding carried digits before multiplying instead of after

Curriculum links

Indicative matches to Australian Curriculum v9. Check wording and codes against the official document.

  • AC9M5N02 Multiply multi-digit whole numbers and divide by single-digit divisors with remainders.

Sample sheet and answers

Six questions at the level's usual difficulty. Open the editor to change, add or regenerate any of them.

Long Multiplication

Year 5 maths

Qs
6
Marks
18
NameDateScore / 18
1.
489 × 19 =
[3]
2.
680 × 16 =
[3]
3.
845 × 28 =
[3]
4.
375 × 20 =
[3]
5.
317 × 12 =
[3]
6.
965 × 16 =
[3]

Answer key

  1. 9291Split 19: 489 × 10 = 4890, and 489 × 9 = 4401; Add: 9291
  2. 10 880Split 16: 680 × 10 = 6800, and 680 × 6 = 4080; Add: 10 880
  3. 23 660Split 28: 845 × 20 = 16 900, and 845 × 8 = 6760; Add: 23 660
  4. 7500Split 20: 375 × 20 = 7500, and 375 × 0 = 0; Add: 7500
  5. 3804Split 12: 317 × 10 = 3170, and 317 × 2 = 634; Add: 3804
  6. 15 440Split 16: 965 × 10 = 9650, and 965 × 6 = 5790; Add: 15 440