Module 1 Knowing and using number facts
Select each tab to find out more or use the breadcrumb trail to go to another part of this resource.
Can I use my tables to work out multiplication and division facts with decimals?

Example review questions

  • What is half of 6?
  • What is 0.9 × 4? How did you work this out?
  • Multiply 7 by 0.6.
  • Divide 4.8 by 6.
  • What is 4 × 0.7? How do you know?
  • 0.15 ÷ 3 =
  • What number multiplied by 8 equals 4.8?
  • What multiplication and division facts do you know, or can you derive, with an answer of 5.6?
  • What could the missing numbers be? box × box = 3.2
    Can you think of several pairs of numbers that would work?
  • Solve 2.8 ÷ box = 0.4.

Teaching guidance

This teaching guidance document suggests some of the key vocabulary, models, images and practical equipment that children should experience and be able to use. It also includes some teaching tips to provide a few starting points for ways of supporting children with this area of mathematics.

PDF file Can I use my tables to work out multiplication and division facts with decimals? - teaching guidance | 80KB new window

Consolidation and practice

These resources are to support children in guided or independent work. Roll over the highlighted resources for a description.

Number dials

itp_number_dials.png

This interactive teaching program (ITP) is an ICT-based tool to support the exploration and recall of multiplication and division facts. Number dials ITP allows the child or teacher to generate sets of products of a central number and numbers from 1 to 10. The ITP can be used to practise multiplying and dividing by one- and two-digit whole numbers and decimals.

Multiplication tables

itp_multiplication_tables.png

This interactive teaching program (ITP) is an ICT-based tool to support the exploration of multiplication facts. Multiplication tables ITP allows the child or teacher to set up one or more multiplication tables, hiding or revealing either of the factors or the product. Decimal numbers can be explored using the keypad.

Opportunities to use and apply

Possible contexts include:

  • written calculations, e.g. Solving 4.8 × 3 by calculating
    4 × 3 and then 0.8 × 3. Extend this to decimals with up to two decimal places, for example, 4.82 × 3.
  • word problems, e.g.
    • My pencil is 9.2 cm long. My desk is 6 pencil-lengths wide. How wide is the desk, in centimetres?
    • Six packets of crisps cost £1.20. How much does each packet cost in £s?
  • solving number puzzles, e.g. Find a number of which the double lies between 1.3 and 1.4. Can you find more than one?

Confirming learning

Ask probing questions such as:

  • Explain how you would find half of 18.36.
  • How many different multiplication and division facts can you find, using what you know about 72? What if you started with 7.2? 0.72?
  • The answer to a multiplication or division calculation is 0.56. What could the calculation be? How many possibilities can you find?
  • Are any of the following incorrect?
    0.7 × 0.8 = 5.6
    8 × 0.8 = 6.4
    56 ÷ 0.7 = 8
    Explain why and how you know, using words or diagrams.