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Year 5 - Maths

Explain that decimal numbers with hundredths can be partitioned in different ways

Understand hundredths as parts of a whole and represent

Unit Summary

In this unit pupils will identify hundredths as part of a whole and describe and represent hundredths as a decimal fraction. They will compare and order decimal numbers with hundredths.

Lesson Summary

You will learn to explain that decimal numbers with hundredths can be partitioned in different ways.

Key Notes

  • Place value resources can help you to partition decimal numbers with hundredths in different ways.
  • Decimal numbers with hundredths can be partitioned into a whole number, a number of tenths and a number of hundredths.
  • Part-part-whole models can be used to partition decimal numbers with hundredths into two parts in different ways.
  • Decimal numbers with hundredths can be written as multiplication equations with a factor of 0.01

Vocabulary To Learn

  • Partitioning: The act of splitting an object or value down into smaller parts.
  • Decimal numbers: A number with a decimal point followed by digits that show the fractional part.

Common Mistakes To Avoid

  • Pupils write subtraction equations incorrectly for example: 7.42 = 7 − 0.4 − 0.02

3 Quick Questions (With Answers)

1. Solve this in steps: explain the method from this lesson and why each step matters.

Place value resources can help you to partition decimal numbers with hundredths in different ways. Decimal numbers with hundredths can be partitioned into a whole number, a number of tenths and a number of hundredths.

2. Use this key word in a maths sentence and explain it clearly. 'Partitioning'

The act of splitting an object or value down into smaller parts. Use this word when showing your method, then check your final answer is reasonable.

3. Spot and fix this common maths mistake.

Mistake: Pupils write subtraction equations incorrectly for example: 7.42 = 7 − 0.4 − 0.02. Correction: Create the number using place value counters and subtract parts whilst drawing a part-whole model and writing the equation alongside.

More Lessons In This Unit

Browse all guides in the Year 5 Maths guide library.