REVISION ALGEBRA - REVISION ALGEBRA - Addition, Subtraction, Addition, Subtraction,

MultiplicationMultiplication

YEAR 8 RAFFLESIAYEAR 8 RAFFLESIA

MONDAY, 7 FEB 2011MONDAY, 7 FEB 2011

LESSON OBJECTIVE• Recall and review on :

– Addition– Subtraction– Multiplication

• Be familiar with terms in algebra

Revision exercise• Materials given:

– Powerpoint Question– Symbol cards

• Students should have:– Classwork book– Writing stationary materials, pen, pencil,

eraser, ruler

Answer all the questions in this revision exercise

• Copy all the questions from the powerpoint slides (draw the table)

• You are given 20 minutes to answer all the questions

• You can discuss with your friend but no copying

Solve the questions, find the answer and the symbol!

Question Answer Symbol Letter

1. b+b+b+b

2. 3a+8a

3. 10c-2c

4. 5c-c+4c-2c

5. 3a+b+b

6. 5d-4d+2d

7. -a+2a+3b+4b

8. 4c+3d+6c-4d

9. 7x+11y-2x -3y

10. b+4d+3b-d

11. 4a-4c+5a-c+a

12. 10x-5y-3x -2y

continuation!

Question Answer Symbol Letter

13. a x c x d

14. 6 x a x b x c

15. a x 5 x b x 4

16. 3a x 2b x d

17. 10ab x cd

18. 2bc x 3ad

19. a x a x a x a

20. d x d x d x d x d x d

21. a x 3a

22. 4b x 5b x 2b

23. 2a x 3a x 3b x b

24. 3a x 4a x b x a x 2b

After copying the questions…

• Answer all the questions.

•You have 20 minutes…..

COMPLETE???• Now, let’s look at how you can compare

your answer with the symbol cards

• The symbol card represent the correct terms given on top of the symbol

• Check your answer - Do corrections!!!

SYMBOL CARDS FOR ADDITION AND SUBTRACTION

a+7b 10c-d

f p 5x+8y 4b+3d

i z 10a-5c 7x-7y

v a

4b 11a

S i 8c 6c

M P 3a+2b 3d

L i

SYMBOL CARDS FOR MULTIPLICATION

a4 d6

i S 3a2 40b3

e a 18a2b2 24a3b2

S p

acd 6abc

L v 20ab 6abd

e h 10abcd 6abcd

R a

WELL DONE!!• How well did you do in the revision?

• Anyone got 24 out of 24?

• Anyone got more than 10 correct answers?

Good!• Next lesson you will do more on

Algebra - Expansion of brackets.

• Remember to bring your Classwork book to class in the next lesson.