1 / 16

Level 4/5 Booster

Level 4/5 Booster. Lesson 3B. Fractions, decimals and percentages 2. Objectives:. Calculate percentages using non-calculator methods. Calculate percentages less than 10% and values other than multiples of 10. Vocabulary:. multiple. Equivalent. recurring decimal. T3.1B.

elvina
Download Presentation

Level 4/5 Booster

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Level 4/5 Booster Lesson 3B Fractions, decimals and percentages 2

  2. Objectives: • Calculate percentages using non-calculator methods. • Calculate percentages less than 10% and values other than multiples of 10. Vocabulary: multiple Equivalent recurring decimal

  3. T3.1B 500 is 10% of 5000 20 is 50% of 40. 50 is 20% of 250 120 is 25% of 480 90 is 5% of 1800 70 is 50% of 140 60 is 50% of 120 120 is 40% of 300 250 is 50% of 500 90 is 75% of 120 Find three more percentage relationships on the target board.

  4. What is 10% of £380? How did you work out 10% of £380? How can you use the answer for 10% to find 20%? 20% = 10% + 10% = £38 + £38 = £76 How can you use 10% to find 30%? 30% = 10% + 10% + 10% = 3 x £38 = £114

  5. W/S 3.1B 10% 60% 50% 20% 60 30% 40% On a copy of the spider diagram fill in the amounts.

  6. Answers: 10% 60% 6 36 50% 20% 60 30 12 30% 40% 24 18

  7. How many times will 5% fit into 10%? How can you work out 5% if you know 10%? Find 5% of £240 – explain how you got your answer. 10% of £240 is £24 so 5% of £240 is £12. 10% 0% 100% 0 £240 £24 Find 5% of £720 – explain how you got the answer. so 5% of £720 is £36 10% of £720 is £72

  8. T3.2B Find 5% of each amount as it is highlighted

  9. How can you find 15% of an amount? 15% can be found by adding 10% and 5% together. Find 15% of 300 – explain your working. 10% of 300 is 30 5% of 300 is 15 15% is 30 + 15 = 45 15% 10% 0% 100% 0 300 30 45

  10. T3.2B Find 15% of each number as it is highlighted.

  11. W/S3.2B 25% 15% 10% 17.5% 5% 60 45% 95% 35% 55% Complete a spider diagram like the one above.

  12. Answers 25% 15% 10% 9 15 6 17.5% 10.5 5% 3 60 45% 57 95% 27 21 33 35% 55%

  13. If I can find 10% how can I find 1%? Example: Find 1% of £350 Method 1 1% is the same as 1/100th so I can divide by 100 £350 ÷ 100 = £3.5 written £3.50 Method 2 1% is 10% divided by 10. 10% of £350 is £35 so 1% is £35 ÷10 = £3.5 or £3.50

  14. T3.1B State 1% of each number as it is highlighted.

  15. Objectives: • Calculate percentages using non-calculator methods. • Calculate percentages less than 10% and values other than multiples of 10. Vocabulary: multiple Equivalent recurring decimal

  16. Thank you for your attention

More Related