1. LO: To find a p………………… of a whole n…………………
Percentage – L4/6
19/11/2018
LO: To find a p………………… of a whole n…………………
percentage
number
Starter:
What does percent mean?
Where would you use percentages in real life?
Red
Amber
Green
Challenge
10% of 20 =
15% of 80 =
21% of 400 =
Increase 300
by 22% 84 2 12 66

2. Real life example of percentage
Key words:
Percent– out of 100
Increase– going up
Decrease– going down
LO: To find a percentage of a whole number

3. Steps to success Red (Level 4)
I can successfully 50% or 10% of a number
e.g 50% of or % of 40
Amber (Level 5)
I can use 10% to find difficult percentages
e.g 45% of 60
Green (Level 6)
I can use 1% to find even more difficult percentages
e.g 21% of 300
Challenge (6+)
I can increase a number by a percentage
e.g Increase 300 by 22%

4. Red Amber Support task Red questions Amber Questions Green
10% of 20 =
15% of 80 =
Red questions 2 12
Amber Questions
Green
Green questions
21% of 400 =
Challenge questions 84
LO: To find a percentage of a whole number

5. Round 1 50% of 200 10% of 90 20% of 50 20% of 80 5% of 40 5% of 500
LO: To find a percentage of a whole number
50% of 200
10% of 90
20% of 50
20% of 80
5% of 40
5% of 500
15% of 60
35% of 20
65% of 80
1% of 400
2% of 200
21% of 300
32% of 500
23% of 800
67% of 400
100
100 4 9 9 63 10 7
160 16 52
184 2 4
268
Increase £300 by 7%
Increase 400kg by 26%
321
504

6. Support: Challenge: 50% of 20 50% of 600 50% of 42 60 by 20% 10% of 30
Increase the amount by the percentage
50% of 20
50% of 600
50% of 42
10% of 30
10% of 500
10% of 15
20% of 60
5% of 40 10
60 by 20%
80 by 30%
40 by 15%
1200 by 20%
300 by 1%
24000 by 4%
40 by 2.5%
20 by 17.5% 72
300
104 21 46 3
1440 50
303
1.5
2960 12 41 2
23.5

7. What is the correct answer?
10% of 200
What is the correct answer? 2 20
0.2
LO: To find a percentage of a whole number

8. What is the correct answer?
15% of 60
What is the correct answer? 9 6 12
LO: To find a percentage of a whole number

9. What is the correct answer?
21% of 300
What is the correct answer? 60 63 65
LO: To find a percentage of a whole number

10. When finding 10%
Divide by 10
When finding 1%
Divide by 100

11. Steps to success Red (Level 4)
I can successfully 50% or 10% of a number
e.g 50% of or % of 40
Amber (Level 5)
I can use 10% to find difficult percentages
e.g 45% of 60
Green (Level 6)
I can use 1% to find even more difficult percentages
e.g 21% of 300
Challenge (6+)
I can increase a number by a percentage
e.g Increase 300 by 22%

12. Red Amber Support task Red questions Amber Questions Green
10% of 20 =
15% of 80 =
Red questions 2 12
Amber Questions
Green
Green questions
21% of 400 =
Challenge questions 84
LO: To find a percentage of a whole number

13. Round 2 50% of 200 10% of 90 20% of 50 20% of 80 5% of 40 5% of 500
LO: To find a percentage of a whole number
50% of 200
10% of 90
20% of 50
20% of 80
5% of 40
5% of 500
15% of 60
35% of 20
65% of 80
1% of 400
2% of 200
21% of 300
32% of 500
23% of 800
67% of 400
100 25 4 9 9 63 10 7
160 16 52
184 2 4
268
Increase £300 by 7%
Increase 400kg by 26%
321
504

14. Support: Challenge: 50% of 20 50% of 600 50% of 42 60 by 20% 10% of 30
Increase the amount by the percentage
50% of 20
50% of 600
50% of 42
10% of 30
10% of 500
10% of 15
20% of 60
5% of 40 10
60 by 20%
80 by 30%
40 by 15%
1200 by 20%
300 by 1%
24000 by 4%
40 by 2.5%
20 by 17.5% 72
300
104 21 46 3
1440 50
303
1.5
2960 12 41 2
23.5

15. 7 6 9 6 105 22 21 63 3 4 3 18 63 44 42 84 Individual Questions (A)
Individual Questions (B) 7 6
1) 10% of 70
1) 10% of 60
2) 30% of 30 9
2) 15% of 40 6
105 22
3) 21% of 500
3) 11% of 200 21 63
Challenge: Increase 20 by 5%
Challenge: Increase 60 by 5%
Individual Questions (C)
Individual Questions (D) 3 4
1) 10% of 30
1) 10% of 40 3 18
2) 15% of 20
2) 30% of 60 63
3) 11% of 400 44
3) 21% of 300 42 84
Challenge: Increase 40 by 5%
Challenge: Increase 80 by 5%

16. Steps to success Red (Level 4)
I can successfully 50% or 10% of a number
e.g 50% of or % of 40
Amber (Level 5)
I can use 10% to find difficult percentages
e.g 45% of 60
Green (Level 6)
I can use 1% to find even more difficult percentages
e.g 21% of 300
Challenge (6+)
I can increase a number by a percentage
e.g Increase 300 by 22%

17. Challenge: Who scored most in Mr Fevrier’s last Math test ?
Angelina
Queen Elizabeth
Lionel
Kim Mo
10% of 180
50% of 22
25% of 80
30% of 30
15% of 140 18 11 20 9
Score: 21
Score:
Score:
Score:
Score:
Beyonce
Steven
Katy
Drake
Richard
30% of 70
25% of 52
20% of 60
20% of 70
40% of 60 21 13 12 14
Score: 24
Score:
Score:
Score:
Score:

18. Challenge: Who scored most in Mr Fevrier’s last Math test ?
Angelina
Queen Elizabeth
Lionel
Kim Mo
10% of 180
50% of 22
25% of 80
30% of 30
15% of 140
Score:
Score:
Score:
Score:
Score:
Steven
Katy
Drake
Beyonce
Richard
30% of 70
25% of 52
20% of 60
20% of 70
40% of 60
Score:
Score:
Score:
Score:
Score:

19. Support: Challenge: 50% of 20 50% of 600 50% of 42 60 by 20% 10% of 30
Increase the amount by the percentage
50% of 20
50% of 600
50% of 42
10% of 30
10% of 500
10% of 15
20% of 60
5% of 40
60 by 20%
80 by 30%
40 by 15%
1200 by 20%
300 by 1%
24000 by 4%
40 by 2.5%
20 by 17.5%

20. Task 1

21. Task 2

22. Individual Questions (A)
Individual Questions (B)
1) x + 3, x= 5
1) x - 4, x= 7
2) 5x - 1, x= 2
2) 3x + 2, x= 4
3) y² + 2y, y= 2
3) 2y² + y, y= 2
Challenge: 2x² + x, x=-2
Challenge: 3x² + 2x, x=-1
Individual Questions (C)
Individual Questions (D)
1) x - 2, x= 5
1) x + 7, x= 3
2) 3x + 3, x= 3
2) 2x - 3, x= 2
3) y² + 3y, y= 2
3) 2y² + y, y= 3
Challenge: x² + 4x, x=-1
Challenge: 2x² + 3x, x=-2