In a previous activity, we represented word problems using algebraic expressions.
Let's take it a bit further.
If you decided to go to the shop to buy a chocolate bar and your friends then asked you to get one for them, you would not write the order like this:
1 lumpy caramel chewy
1 lumpy caramel chewy
1 lumpy caramel chewy
1 nutty caramel chewy
1 nutty caramel chewy
It has to be easier to write 3L + 2N where L means lumpy and N means nutty.
What about this one?
If I wrote 2P what could it mean?
Answer - Well, we don't know what P is (it could be absolutely anything, clouds, sweets, cars, apples .....) but we do know that there are 2 of them.
A question could look like this:
Example
What does 2f + 4h - 5t mean?
Answer
f multiplied by 2, add h multiplied by 4, subtract t multiplied by 5
So, now we know how to get from the statement to the algebraic expression ........... and back again!
Let's try some questions!