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
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
Steps to success Red (Level 4) I can successfully 50% or 10% of a number e.g 50% of 40 or 10% 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%
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
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
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
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
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
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
When finding 10% Divide by 10 When finding 1% Divide by 100
Steps to success Red (Level 4) I can successfully 50% or 10% of a number e.g 50% of 40 or 10% 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%
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
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
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 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%
Steps to success Red (Level 4) I can successfully 50% or 10% of a number e.g 50% of 40 or 10% 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%
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:
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:
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%
Task 1
Task 2
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