Addition, Subtraction and Multiplication of Algebraic Expressions

This video from Khan Academy explains how to gather like terms and simplify an algebraic expression.

Note: All Khan Academy content is available for free at www.khanacademy.org.

These notes from HELM (pages 40-42) show how to add and subtract like terms in algebraic expressions. Try the exercises on page 43 to get more practice.

A pdf of this document can be downloaded here.

Practise collecting like terms with the following NUMBAS exercise.

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These two videos from Maynooth University explain how to multiply and expand algebraic expressions

Note: All Maynooth University content is available for free at msc.maths.nuim.ie.

Note: All Maynooth University content is available for free at msc.maths.nuim.ie.

These notes from HELM (pages 44-51) show how to multiply algebraic expressions. Try the exercises on page 54 to practise what you have learned.

A pdf of this document can be downloaded here.

Try the following NUMBAS questions on multiplying algebraic expressions.

Please click here to view this NUMBAS question in another window.

Please click here to view this NUMBAS question in another window.

This video from Maynooth University explains how to remove brackets by expanding/multiplying out algebraic expressions.

Note: All Maynooth University content is available for free at msc.maths.nuim.ie.

These notes from HELM (pages 44-51) show how to remove brackets from algebraic expressions. Try the exercises on page 54 to practise what you have learned.

A pdf of this document can be downloaded here.

Try these NUMBAS exercises for more practice removing brackets and multiplying algebraic expressions.

Please click here to view this NUMBAS question in another window.