1. 9-Aug-15Created by Mr. Lafferty Maths Dept. Add / Subtract Integers Double Negatives Integers www.mathsrevision.com Multiply +ve / -ve Integers Divide by +ve or -ve Integers

2. 9-Aug-15Created by Mr. Lafferty Maths Dept. Starter Questions Starter Questions www.mathsrevision.com

3. 9-Aug-15Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Learning Intention Success Criteria 1.To remember rules for adding and subtract both positive and negative numbers. 1. We are learning how to add positive and negative numbers. Integers Addition & Subtraction 2. To apply rules to simple questions.

4. 9-Aug-15Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Integers 1 + 3 = -1 - 2 = -3 + 5 = 4 - 5 = 4 2 -3 4 3 2 1 0 -2 -3 Think Thermometer Addition & Subtraction

5. 9-Aug-15Created by Mr. Lafferty Maths Dept. Now try Exercise 3 Ch2 (page 14) www.mathsrevision.com Integers Addition & Subtraction

6. 9-Aug-15Created by Mr. Lafferty Maths Dept. Starter Questions Starter Questions www.mathsrevision.com

7. 9-Aug-15Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Learning Intention Success Criteria 1.To understand the ‘double negative’ rule for numbers. 1. We are learning how to work with the ‘double negative’ for numbers. Integers 2.To simplify and solve problems using the ‘double negative’ property. Addition & Subtraction

8. 9-Aug-15Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Integers 1 - (- 2) = Double Negative -1 - (- 10) = -3 - (- 5) = - 4 – (- 5) = 3 1 2 9 1 + 2 = - 4 + 5 = - 3 + 5 = -1 + 10 = Rule - - = + “Double negative make a positive” Addition & Subtraction

9. 9-Aug-15Created by Mr. Lafferty Maths Dept. Now try Exercise 4 Ch2 (page 15) www.mathsrevision.com Integers Addition & Subtraction

10. 9-Aug-15Created by Mr. Lafferty Maths Dept. Starter Questions Starter Questions www.mathsrevision.com

11. 9-Aug-15Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Learning Intention Success Criteria 1. We are learning how to multiply positive and negative numbers. 1. Understand how to multiply positive and negative numbers. Integers Multiplication

12. 9-Aug-15Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Integers 1 x (-2) = Multiplying Integers 5 x (-8) = (-3) x 3 = (-4) x 5 = (-2) x (-1) = (- 2) x (-5) = (-5) x (-5) = (-4) x (-8) = Multiplication -2 -20 -9 -40 2 10 25 32 With your partner can try and come up with the rules for multiplying integers (+ve) x (+ve) = (+ve) (-ve) x (–ve) = (+ve) (-ve) x (+ve) = (-ve) (+ve) x (–ve) = (-ve) Same signs = positive answer Different signs = negative answer

13. 9-Aug-15Created by Mr. Lafferty Maths Dept. Now try MIA Ex 13.1 Ch1 (page 24) www.mathsrevision.com Integers Multiplication

14. 9-Aug-15Created by Mr. Lafferty Maths Dept. Starter Questions Starter Questions www.mathsrevision.com 20 o xoxo xoxo

15. 9-Aug-15Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Learning Intention Success Criteria 1. We are learning how to divide by positive and negative numbers. Integers 1. Understand how to divide positive and negative numbers. Division 1. Apply rules to simple number questions.

16. 9-Aug-15Created by Mr. Lafferty Maths Dept. Now try MIA Ex 14.1 Ch1 (page 25) www.mathsrevision.com Integers Division MNU 2-04a MNU 3-03b MNU 3-04a

17. 9-Aug-15Created by Mr. Lafferty Maths Dept. www.mathsrevision.com Integers (-2) ÷ 1 = (-25) ÷ 5 = (-9) ÷ 3 = 20 ÷ (-5) = (-2) ÷ (-1) = (- 20) ÷ (-5) = (-9) ÷ (-3) = (-40) ÷ (-8) = Division -2 -4 -3 -5 2 4 3 5 With your partner can try and come up with the rules for multiplying integers (+ve) ÷ (+ve) = (+ve) (-ve) ÷ (–ve) = (+ve) (-ve) ÷ (+ve) = (-ve) (+ve) ÷ (–ve) = (-ve) Same signs = positive answer Different signs = negative answer

18. 9-Aug-15Created by Mr. Lafferty Maths Dept. Now try MIA Ex 14.1 Ch1 (page 25) www.mathsrevision.com Integers Division