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Subtraction Methods

£10.00
SKU M5CS4100
Key Stage 2 Addition and Subtraction Maths Spring Term Year 5

Use code SAVE2020 for 20% off when you spend £20 or more.

This scheme of work explores the suitability of different written and mental methods including the formal written method for subtraction. Your class will have the opportunity to share their understanding with their peers and test out different methods for solving problems in different ways. They investigate the use of bar models to represent word problems and how they can help in figuring out what the problem is asking them to do.

 
#TheCompleteSeries5lessons
#Lesson1MissingNumberProblems

After recapping on the formal written method for subtraction, challenge your class to use their understanding to solve some missing number problems within column subtraction. Children have to use their reasoning skills as well as careful observation to spot when a problem has exchanged, and fill in the missing digits for the calculation.

 

 

What's included:

  • Lesson plan
  • Slides
  • Activity ideas
  • Differentiated worksheets
  • Game sheet
  • Instruction cards
#Lesson2WrittenorMentalMethods

This lesson gives the children an opportunity to share their ideas and thinking when working through a subtraction problem. They discuss the advantages and disadvantages of different mental and written methods for subtraction including partitioning, compensating, number lines and column subtraction. They go on to use this understanding to choose a suitable method for various calculations, explaining why they have chosen to use that method baed on the numbers involved.

 

 

What's included:

  • Lesson plan
  • Slides
  • Activity ideas
  • Differentiated worksheets
  • Challenge cards
#Lesson3Inverseoperations

This lesson explores the relationships between the operations and how this knowledge can be used to check answers to questions. Children become the teacher when marking their work and looking for mistakes that may have been made when working out a subtraction calculation. They also investigate the tricky ‘I’m thinking of a number...’ problems and how the inverse is used to solve them.

 

 

What's included:

  • Lesson plan
  • Slides
  • Activity ideas
  • Differentiated worksheet
  • Domino cards
#Lesson4SubtractingMultipleValues

Using the knowledge and understanding from previous lessons, the children have the opportunity to share their methods when subtracting more than one subtrahend in a calculation. The slides discuss two different methods and ask the children to compare and evaluate them, choosing which method is more efficient for this kind of problem.

 

 

What's included:

  • Lesson plan
  • Slides
  • Activity ideas
  • Differentiated worksheets
  • Subtraction cards
  • Number cards
#Lesson5BarModels

Take an in-depth look at bar models with your class and discover how they can represent various word problems. Building slowly to use larger numbers, the children draw their own bar models to support them in solving multi-step addition and subtraction word problems. The children can also use the bar models to show an in-depth understanding of what a problem is asking them to do, as well as using the models to show their thought processes when working through a problem.

 

 

What's included:

  • Lesson plan
  • Slides
  • Activity ideas
  • Differentiated worksheets
  • Number chase cards
  • Number chase answer card
Free Overview (Medium-Term Plan)

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Free Assessment Grid

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Curriculum Objectives covered
  • Year 5 - add and subtract whole numbers with more than 4 digits, including using formal written methods (columnar addition and subtraction)
  • Year 5 - add and subtract numbers mentally with increasingly large numbers
  • Year 5 - solve addition and subtraction multi-step problems in contexts, deciding which operations and methods to use and why
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