2011 S1-01 Maths Blog
(8 March 2011) Chapter 4: Evaluation of Algebraic Expressions
In this activity, you will evaluate an expression when given values for the variables (substitution)
Let's see if you could help Postman Pil to deliver the letters without having them torn by Dougal
http://www.bbc.co.uk/education/mathsfile/shockwave/games/postie.html
Click
HERE
for the key idea of the activity
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