Check KHMER WOO's homework. If you find any of his answers are wrong please write down a sentence or two explaining what he did wrong.
Topics: Starter  Algebra  Arithmetic
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1. Correct 
7. Correct 
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Teacher, do your students have
access to computers? 

Here a concise URL for a version of this page without the comments.
Here is the URL which will take them to a mixed student activity.
Look back at the work you have done in your exercise book or on your computer. Find all of the mistakes you have made. Create a page like the one above containing your mistakes and some correct calculations. Email it to another student to mark.