Years 3 & 4: Addition and Subtraction
This list consists of visual resources, activities and games designed to support the new curriculum programme of study in Years 3 and 4. Containing tips on using the resources and suggestions for further use it covers:
Year 3: adding and subtracting numbers up to 3 digits mentally and using formal methods, estimating answers, using inverse operations to check answers and solving problems.
Year 4: adding and subtracting numbers up to 4 digits using formal methods, estimating answers, using inverse operations to check answers and solving two step addition and subtraction problems.
Visit the primary mathematics webpage to access all lists.
Links and Resources
A wealth of interactive resources which may be used to demonstrate key teaching points across the mathematics curriculum.
The interactive Number line is a good way of showing how to count on or back to find the difference between two numbers.
These booklets highlight common errors and misconceptions in addition and subtraction children may hold in KS2. E.g. page 23 highlights a possible reason for calculation errors; that a child may not yet be secure in number bonds to 20. An activity is detailed to help develop the child's understanding and help to fill in any gaps in their learning. A great resource for supporting small groups or individuals.
Aimed at lower KS2, this resource provides games and activities, including photocopiable worksheets. They could be used with the whole class or with smaller groups practising specific topics.
Topic 3 looks at subtraction as the inverse operation of addition. It includes activities which practise counting back on a number line, finding out differences and revising and memorising subtraction number bonds.
As children may become confused if introduced to the standard condensed form of subtraction with exchange too early, topic 13 shows examples of and provides activities to practise subtraction of two digits by two digits using decomposition. Further resources aimed at Year 4 may be found in here.
Three resource packs contains work cards including games, activities and calculations based around simple counting, number bonds to ten, addition using money and adding two and three digit numbers. Some activities use base ten to support column addition, others practise addition through games and investigation. They start with simple addition and extend to more difficult tasks.
An activity idea for using Cuisenaire Rods to introduce subtraction. Could be a way of introducing subtraction to the whole class or to support smaller groups of learners. This activity could be adapted for use with coloured cubes, or squared paper and also be used to make addition sentences in a similar way.
Six work cards for running activities on subtracting two digit numbers using physical apparatus and using the column method. One card demonstrates how base ten apparatus may be used to aid subtraction of two digit numbers from two digit numbers. This could be extended to subtract two digit numbers from three digit numbers. It also includes games to practise subtraction.
A collection of worksheets which can be used to reinforce calculation skills. They are useful for homework or as a reinforcement of key ideas.
This selection of games may be laminated and used by children to practise calculation with many games on addition and subtraction. Use as a starter, activity with small groups, to extend or support or even for homework. The games practise addition subtraction with 1 or 3 digits.
Books 8 and 9 are a collection of games which may be used in class to practise addition of single and two-digit numbers.
Solving worded problems is always an area that children find difficult. This video shows a way of helping children develop their understanding of how the language of a problem relates to a particular mathematical operation. Sorting key words and phrases to decide which operation is required provides children with an approach that they could apply when faced with further worded problems.