1. Using Algebra – Collecting Terms

2. Achbar the Egyptian is having great difficulty counting his camels! Can you help him?

3. What about the Pyramids?

4. And the sphinx?

5. Exercise Simplify: 1.. 2.. 3.. 4.. 5..

6. Is it possible for Achbar to add one camel to two pyramids? A camel and a pyramid are two totally different things, we cannot add them! Only terms are the same Let us collect them by adding

7. Exercise Simplify: 1.. 2.. 3.. 4.. 5..

8. Subtract What about: Subtracting camels is just as easy as adding them! One camel, c not 1c, we do not need the 1

9. Subtract What about:

10. Exercise Simplify: 1.. 2.. 3.. 4.. 5..

11. Subtracting Different Terms What about: Since a camel and a pyramid are different things, we cannot subtract them! Cannot simplify!

12. Subtracting Different Terms What about: Collect the pyramids first, then the camels.

13. Subtracting Different Terms What about: The negative sign relates to variable c

14. Exercise Simplify: 1.. 2.. 3.. 4.. 5..

15. Worksheet Answer the questions on the worksheet in your books. Remember to follow the same method as that shown in the examples: Answers 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18.

16. Worksheet Answers 19. 20. 21. 22. 23. 24. 25. Well done!