Maths Year 3 Autumn Multiplication and Division

Each unit has everything you need to teach a set of related skills and concepts.

Revision of 2x, 5x and 10x tables: x and ÷ (suggested as 3 days)

Planning and Activities

Day 1 Teaching
Use 5 jumps of 7 and 7 jumps of 5 along a 0-50 beaded line to show that these come to the same place. Then show an array of 5 rows of 7 cubes and turn it round to be 7 rows of 5 cubes. Stress commutativity.
Group Activities
-- Exploring arrays and writing corresponding number sentences.

Day 2 Teaching
Revise 2x table and focus on division, stressing that 12 x 2 = ? is one way of learning the fact and another is ? x 2 = 24: how many 2s in 24? Use ITP Number Grid; highlight multiples of 2, asking division questions.
Group Activities
Use the 'Make the Multiples' in-depth problem-solving investigation below as today’s group activity.
Or, use these activities:
-- Finding out how many 2s are in a number using jumps and beaded lines as well as calculating.

Day 3 Teaching
Write 35, 24, 42, 95, 46, 50, 102, 105, 120 and 125 on the IWB on separate cards. Draw 3 intersecting sets labelled ‘multiples of 2’, ‘multiples of 5’ and ‘multiples of 10’. Discuss how to allocate each number.
Group Activities
-- Playing games exploring multiples of 2, 5, and 10 (as appropriate).

You Will Need

  • 0-50 beaded line
  • Arrays (see resources)
  • 100 bead bar
  • ITP: Number grid
  • 0-30 beaded lines (see resources)
  • 1-12 & 1-24 cards, 100 grid
  • 7 - 12 Dice

Mental/Oral Maths Starters

Suggested for Day 1
Count in 5s and 10s to at least 100 (simmering skills)

Day 2
Count in 2s (pre-requisite skills)

Day 3
2, 5 and 10 times tables (pre-requisite skills)

Worksheets

Day 1
Complete multiplication and division sentences for arrays and given numbers.

Day 2
Complete division sentences.

Day 5
Find multiples of 2.

Mastery: Reasoning and Problem-Solving

  • Write 4 number sentences to relate these 3 numbers: 5, 7 and 35.
  • We know 8 x 5 = 40. So, what is 40 ÷ 5?
    We know 24 ÷ 2 = 12. So, what is 12 x 2?
    Write a division with an answer of 5. Now write a different division using those same three numbers.
  • Explain in one sentence why you might prefer to do 5 x 9 as 9 lots of 5.


In-depth Investigation: Make the Multiples
Children draw on their knowledge of multiples of 2 and 5 to create these using digit cards 0 - 9.

Extra Support

Hops, Skips and Jumps
Counting in 2s from 0 to 20; Counting in 5s from 0 to 50