This spreadsheet of trios of numbers will support pupils in developing their knowledge of addition and subtraction facts, and their inverse relationships. It will help pupils explore families of facts, and questioning can be used to extend thinking to other related facts.

http://www.directoryofchoice.co.uk/ Last update: 2011

This spreadsheet looks at trios of numbers that will support pupils in developing their knowledge of multiplication and division facts, and their inverse relationships. It will help pupils explore families of facts, and questioning can be used to extend thinking to other related facts.

http://www.directoryofchoice.co.uk/ Last update: 2011

This spreadsheet looks at trios of numbers that will support pupils in developing their knowledge of multiplication and division facts, and their inverse relationships. It will help pupils explore families of facts, and questioning can be used to extend thinking to other related facts.

The National Strategies Last update: 2011

This resource looks at trios of numbers that will support pupils in developing their knowledge of multiplication and division facts, and their inverse relationships. It also lists all the possible calculations.

The National Strategies Last update: 2011

This program allows the exploration of 'families' of calculations and the inverse relationship between addition and subtraction.

The National Strategies Last update: 2011

This spreadsheet randomly generates a four by four addition grid that can be used to rehearse the pupils' knowledge of addition and subtraction facts up to and including 10 & 10 and 100 & 100. It can be used to develop reasoning skills.

http://www.directoryofchoice.co.uk/ Last update: 2011

This spreadsheet randomly displays a calculation using addition and subtraction. The numbers or the signs can be hidden and pupils can use their knowledge of facts to reason which numbers or signs would make the calculation correct.

http://www.directoryofchoice.co.uk/ Last update: 2011

Objectives, goals and approaches to use when teaching understanding addition and subtraction and their relationship in level 2 in mathematics. These materials are part of 'Securing level 2 in mathematics'.

http://www.directoryofchoice.co.uk/ Last update: 2011

This spreadsheet randomly generates a four by four addition grid that can be used to rehearse the pupils’ knowledge of addition and subtraction facts up to and including 10 & 10 and 100 & 100. It can be used to develop reasoning skills.

The National Strategies Last update: 2011

This spreadsheet can be used to consolidate pupils’ understanding of the relationship between addition and subtraction. Pupils can be given an addition calculation and then asked to predict the addition calculation and two subtraction calculations that make up the 'family'. Different tabs display different ranges of numbers.

The National Strategies Last update: 2011