Resources

Adding and subtracting directed numbers

This lesson develops the concept of adding and subtracting directed numbers. The activities address common misconceptions about the addition and subtraction of directed numbers. Students explain their reasoning using diagrams.

The activities use the ‘charge’ model of directed numbers. For example, a diagram...

Adding and Subtracting Fractions

This resource features a selection of questions requiring students to add and subtract fractions and mixed numbers.

The questions are split into three sections: must, should and could. Students are directed to complete the first question in each row. Students then decide whether they are confident enough to...

Adding Outwards

This activity is based upon addition and subtraction of integers, requiring students to find patterns and relationships, develop formulae and prove results.

The resource consists of printable worksheets, teachers' notes and solutions.

The activity can be extended by the use of algebra to explain...

Adding Vectors

A good A-level physics revision video linked to adding vectors.  Here you look at how this can be done both mathematically or using scale drawings, by being taken through each method step by step.  This is ideal for revision and could be used in a lesson or shared with students.

Adding with negative numbers

A number line is used in this resource, from the Centre for Innovation in Mathematics Teaching, to illustrate how to solve a calculation involving negative numbers. To help correct misconceptions regarding these, the term taking away is used to represent minus and giving back for plus. Thus -8 +6...

Adding: Numbers and Money

This series of excel sheets look at column addition of whole numbers and money.

The first interactive sheet contains four questions on adding three- and two-digit numbers. Answers can be revealed and a new series of questions can be generated at the click of a button.

The second sheet contains four...

Addition

This SMILE resource contains three packs of games, investigations, worksheets and practical activities supporting the teaching and learning of addition, ranging from simple number bonds to dealing with decimals in context.

Addition pack one contains fifteen work cards with activities on...

The "Maths builder series" is a set of five books covering addition, subtraction, multiplication, division, and decimals and fractions.

The books have been designed to appeal to pupils aged 9-13 years who are...

Addition and Subtraction

This selection of spreadsheets, designed by the Primary National Strategies to aid teaching and learning, tackles addition and subtraction in a variety of ways.

[b]Number line counting[/b] shows a number line of ten places, numbers between 0 and 99 can be chosen. The numbers on the line can be hidden or...

'Understanding maths' is a series of topic-based study books for key stage 2, providing rigorous practice of key subject areas. Addition and subtraction describes in detail the different ways to add and subtract...