Remember


Adding integers a + b = b + a for any integers a and b


Did you know?


The exponent of a power is also called its index. If we want to refer to more than one index we use the plural form indices.


Area of a kite A = 1


__ 2 (diagonal1 × diagonal2


)


Remember box: This helps you to remember important concepts that relate to new work.


Did you know? box: This supplies additional information for interest and extension


Formula box: This highlights key formulae you need to know.


We have used the following icons to make it easier for you to distinguish between different activities:


Challenging activity that you can try after you have mastered a topic.


Investigations that can be done in a classroom.


Tasks required as part of the formal programme of assessment.


If you need to revise all your definitions or do not know what a certain term means, turn to the glossary at the back of the book.


How to use this book


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