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Factor Pairs Assessment Worksheet

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Factor Pairs Assessment Worksheet

Solve each task. A factor pair is a pair of whole numbers that multiply to make the target number. List each pair once, with the smaller factor first.

Factor-Pair Detective

Help organise the equipment for a community sports day.

1.The organiser has 24 cones. Which option lists every factor pair of 24?
  • 1 × 24, 2 × 12, 3 × 8, 4 × 6
  • 1 × 24, 2 × 12, 3 × 8
  • 2 × 12, 4 × 6, 6 × 4
  • 1 × 24, 2 × 12, 4 × 6, 5 × 5
2.A team needs to arrange 30 bibs in equal rows with none left over. Write all the possible factor pairs for 30.
3.Omar says, “7 and 6 are a factor pair of 42.” Is he correct? Explain how you know.
4.Which number has exactly three factor pairs: 16, 17, 21 or 15?
  • 16
  • 17
  • 21
  • 15
5.There are 36 apples to pack into identical trays, with the same number in every tray. Give two different factor-pair arrangements for the apples.

Plan the Sports-Day Layout

Use multiplication to check which arrangements will work.

6.There are 18 chairs. Which arrangement cannot use all the chairs in equal rows?
  • 2 rows of 9
  • 3 rows of 6
  • 4 rows of 5
  • 6 rows of 3
7.A target number has factor pairs 1 × ?, 2 × 12 and 4 × 6. What is the target number, and what is the missing factor?
8.The organiser has 28 flags. Complete the multiplication facts to find all the factor pairs: 1 × __, 2 × __, and 4 × __.
9.Choose whether each statement is true or false: (a) 5 is a factor of 35. (b) 8 is a factor of 30. (c) 9 is a factor of 81.
10.A number between 20 and 30 has exactly three factor pairs. Name one possible number and write its factor pairs.
11.Challenge: The sports-day team has 48 water bottles. Find all the factor pairs of 48. How can you be sure you have found them all?

2 printable pages

  • Factor Pairs Assessment Worksheet, page 1 of 2: Factor-Pair Detective

    Page 1

  • Factor Pairs Assessment Worksheet, page 2 of 2: Plan the Sports-Day Layout

    Page 2

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