Algebraic LCMExercises providing practice finding the lowest common multiple of algebraic expressions. 
This is level 1: Find the lowest common multiple (LCM) of the expressions below:
InstructionsTry your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help. When you have got all of the questions correct you may want to print out this page and paste it into your exercise book. If you keep your work in an ePortfolio you could take a screen shot of your answers and paste that into your Maths file. 



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❎Numeric HCF  Begin with the basics; practise finding the HCF of pairs of numbers
Level 1  Expressions such as: 3c² and 9c
Level 2  Expressions such as: 4x²y and 8xy³
Level 3  Expressions with 3 variables and 3 terms
Level 4  Exercise from an old textbook
Level 5  More advanced exercise from an old textbook
Algebraic HCF  A very similar exercise that can be used to practise finding the highest common factor (HCF) of pairs of expressions
More on Factors including lesson Starters, visual aids, investigations and selfmarking exercises.
Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.
See the National Curriculum page for links to related online activities and resources.
Before beginning this Algebraic HCF exercise you should have mastered
the numeric HCF Exercise.
To type an index or power us the caret symbol ^
For many questions at Levels 4 and 5 the lowest common multiple can be expressed in a number of different formats. The challenge is to find the same format that was printed in the textbook over one hundred years ago. Click on the question numbers in the answers block (at Levels 4 and 5) for a clue showing the required format.
Don't wait until you have finished the exercise before you click on the 'Check' button. Click it often as you work through the questions to see if you are answering them correctly. You can doubleclick the 'Check' button to make it float at the bottom of your screen.
The video above is from @MarkWillisMaths
Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.
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