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![Percentages www mathsrevision com N 5 Num Percentage With and Without a Calculator Expressing Percentages www. mathsrevision. com N 5 Num Percentage With and Without a Calculator. Expressing](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-1.jpg)
Percentages www. mathsrevision. com N 5 Num Percentage With and Without a Calculator. Expressing one number as a % of Another Compound Interest Appreciation & Depreciation 20 -Feb-21 Compiled by Mr. Lafferty Maths Dept.
![Starter Questions www mathsrevision com N 5 Num 20 Feb21 Compiled by Mr Lafferty Starter Questions www. mathsrevision. com N 5 Num 20 -Feb-21 Compiled by Mr. Lafferty](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-2.jpg)
Starter Questions www. mathsrevision. com N 5 Num 20 -Feb-21 Compiled by Mr. Lafferty Maths Dept.
![Percentages www mathsrevision com N 5 Num Learning Intention Success Criteria 1 We are Percentages www. mathsrevision. com N 5 Num Learning Intention Success Criteria 1. We are](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-3.jpg)
Percentages www. mathsrevision. com N 5 Num Learning Intention Success Criteria 1. We are reviewing basic percentages. 1. Remember the basic percentages. 2. Calculate a basic percentage without a calculator. 20 -Feb-21 Compiled by Mr. Lafferty Maths Dept.
![Simple Percentages N 5 Num www mathsrevision com Copy down and learn the following Simple Percentages N 5 Num www. mathsrevision. com Copy down and learn the following](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-4.jpg)
Simple Percentages N 5 Num www. mathsrevision. com Copy down and learn the following basic percentages 20 -Feb-21 Compiled by Mr. Lafferty Maths Dept.
![Simple Percentages N 5 Num www mathsrevision com Copy down and learn the following Simple Percentages N 5 Num www. mathsrevision. com Copy down and learn the following](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-5.jpg)
Simple Percentages N 5 Num www. mathsrevision. com Copy down and learn the following basic percentages 20 -Feb-21 Compiled by Mr. Lafferty Maths Dept.
![Percentages N 5 Num www mathsrevision com Q 20 Feb21 Find 30 of Percentages N 5 Num www. mathsrevision. com Q. 20 -Feb-21 Find 30% of £](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-6.jpg)
Percentages N 5 Num www. mathsrevision. com Q. 20 -Feb-21 Find 30% of £ 40 Compiled by Mr. Lafferty Maths Dept.
![Percentages N 5 Num www mathsrevision com Q 20 Feb21 Find 75 of Percentages N 5 Num www. mathsrevision. com Q. 20 -Feb-21 Find 75% of £](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-7.jpg)
Percentages N 5 Num www. mathsrevision. com Q. 20 -Feb-21 Find 75% of £ 600 Compiled by Mr. Lafferty Maths Dept.
![of means multiple www mathsrevision com N 5 Num Percentages With a Calculator Find of means multiple www. mathsrevision. com N 5 Num Percentages With a Calculator Find](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-8.jpg)
of means multiple www. mathsrevision. com N 5 Num Percentages With a Calculator Find 17% of £ 450 Remember money 2 decimal places 20 -Feb-21 Compiled by Mr. Lafferty Maths Dept.
![Percentages With a Calculator www mathsrevision com N 5 Num Find 4 of Percentages With a Calculator www. mathsrevision. com N 5 Num Find 4% of £](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-9.jpg)
Percentages With a Calculator www. mathsrevision. com N 5 Num Find 4% of £ 70 Remember !! money 2 decimal places 20 -Feb-21 Compiled by Mr. Lafferty Maths Dept.
![Percentages With Without a Calculator www mathsrevision com N 5 Num Now try Percentages With & Without a Calculator www. mathsrevision. com N 5 Num Now try](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-10.jpg)
Percentages With & Without a Calculator www. mathsrevision. com N 5 Num Now try N 5 Lifeskills Ex 1 Ch 3 (page 27) 20 -Feb-21 Created by Mr. Lafferty Maths Dept.
![Percentages www mathsrevision com N 5 Num Learning Intention Success Criteria 1 We are Percentages www. mathsrevision. com N 5 Num Learning Intention Success Criteria 1. We are](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-11.jpg)
Percentages www. mathsrevision. com N 5 Num Learning Intention Success Criteria 1. We are learning to convert a fraction / decimal to a percentage and use them in context. 1. To know how to convert a fraction / decimal to a percentage. 20 -Feb-21 2. Be able to compare percentages in context. Compiled by Mr. Lafferty Maths Dept.
![Percentages www mathsrevision com N 5 Num Converting a fraction to a percentage Do Percentages www. mathsrevision. com N 5 Num Converting a fraction to a percentage Do](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-12.jpg)
Percentages www. mathsrevision. com N 5 Num Converting a fraction to a percentage Do the division Fraction x 100 Decimal Do the division x 100 0. 75 20 -Feb-21 Percentage Compiled by Mr. Lafferty Maths Dept. 75%
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Percentages www. mathsrevision. com N 5 Num Convert these percentages to fraction and simply 20 -Feb-21 Compiled by Mr. Lafferty Maths Dept.
![Percentages www mathsrevision com N 5 Num Write the following percentages as a fraction Percentages www. mathsrevision. com N 5 Num Write the following percentages as a fraction.](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-14.jpg)
Percentages www. mathsrevision. com N 5 Num Write the following percentages as a fraction. 17% = 81% = 40% = 20 -Feb-21 Compiled by Mr. Lafferty Maths Dept.
![Percentages www mathsrevision com N 5 Num Covert these fractions to percentages 20 Feb21 Percentages www. mathsrevision. com N 5 Num Covert these fractions to percentages 20 -Feb-21](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-15.jpg)
Percentages www. mathsrevision. com N 5 Num Covert these fractions to percentages 20 -Feb-21 Compiled by Mr. Lafferty Maths Dept.
![Percentages Comparing Percentages www mathsrevision com N 5 Num Write the following fractions as Percentages Comparing Percentages www. mathsrevision. com N 5 Num Write the following fractions as](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-16.jpg)
Percentages Comparing Percentages www. mathsrevision. com N 5 Num Write the following fractions as percentages. = 27% = 15% = 29% 20 -Feb-21 Compiled by Mr. Lafferty Maths Dept.
![Franchesca has Percentages the best result N 5 Num Franchesca got 45 out of Franchesca has Percentages the best result. N 5 Num Franchesca got 45 out of](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-17.jpg)
Franchesca has Percentages the best result. N 5 Num Franchesca got 45 out of 60 in her Maths exam and Michael got 21 out of 30 in an English exam. Who got the best result. 20 -Feb-21 Compiled by Mr. Lafferty Maths Dept.
![Percentages Comparing Percentages www mathsrevision com N 5 Num Paul scored 24 out Percentages Comparing Percentages www. mathsrevision. com N 5 Num Paul scored : 24 out](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-18.jpg)
Percentages Comparing Percentages www. mathsrevision. com N 5 Num Paul scored : 24 out of 30 in English and 36 out of 40 in Maths. By finding the percentage score for each, which is his best subject ? English 20 -Feb-21 Maths Compiled by Mr. Lafferty Maths Dept.
![Percentages www mathsrevision com N 5 Num Now try N 5 Lifeskills Ex 2 Percentages www. mathsrevision. com N 5 Num Now try N 5 Lifeskills Ex 2](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-19.jpg)
Percentages www. mathsrevision. com N 5 Num Now try N 5 Lifeskills Ex 2 Ch 3 (page 29) Are you on Target ? I can ? 20 -Feb-21 Created by Mr. Lafferty Maths Dept.
![www mathsrevision com Starter Questions 10 cm 20 Feb21 Created by Mr Lafferty Maths www. mathsrevision. com Starter Questions 10 cm 20 -Feb-21 Created by Mr. Lafferty Maths](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-20.jpg)
www. mathsrevision. com Starter Questions 10 cm 20 -Feb-21 Created by Mr. Lafferty Maths Dept. 8 cm
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Compound Interest www. mathsrevision. com N 5 Num Learning Intention Success Criteria 1. We are learning how to use the compound formula for appropriate problems. 1. To know when to use compound formula. 2. Solve problems involving compound formula. Saturday, February 20, 2021 created by Mr. lafferty @ www. mathsrevision. com 21
![www mathsrevision com Interest calculated on new value N 5 Num every year Compound www. mathsrevision. com Interest calculated on new value N 5 Num every year Compound](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-22.jpg)
www. mathsrevision. com Interest calculated on new value N 5 Num every year Compound Interest Real life Interest is not a fixed quantity year after year. One year’s interest becomes part of the next year’s amount. Each year’s interest is calculated on the amount at the start of the year. Example Initial value Daniel has £ 400 in the bank. He leaves it in the bank for 3 years. The interest is 7% each year. Calculate the simply interest and then the compound interest after 3 years. Saturday, February 20, 2021 created by Mr. lafferty @ www. mathsrevision. com 22
![Compound Interest calculated on new value every year www mathsrevision com N 5 Num Compound Interest calculated on new value every year www. mathsrevision. com N 5 Num](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-23.jpg)
Compound Interest calculated on new value every year www. mathsrevision. com N 5 Num Daniel has £ 400 in the bank. He leaves it in the bank for 3 years. The interest is 7% each year. Calculate the compound interest and the amount he has in the bank after 3 years. Simple Interest Y 1 : Interest = 7% of £ 400 = £ 28 3 x 28 = £ 84 Amount = £ 400 + £ 28 = £ 428 Y 2 : Interest = 7% of £ 428 = £ 29. 96 Amount = £ 428 + £ 29. 96 = £ 457. 96 Y 3 : Interest = 7% of £ 457. 96 = £ 32. 06 Amount = £ 457. 06 + £ 32. 06 = £ 490. 02 Simple Interest is only £ 84 Saturday, February 20, 2021 Compound is £ 490. 02 - £ 400 = £ 90. 02 created by Mr. lafferty @ www. mathsrevision. com 23
![Compound Interest www mathsrevision com N 5 Num This is called the multiplier Easier Compound Interest www. mathsrevision. com N 5 Num This is called the multiplier. Easier](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-24.jpg)
Compound Interest www. mathsrevision. com N 5 Num This is called the multiplier. Easier Method n = period of time Days, months years I = initial value IMPORTANT ± = increase or decrease Can only use this when percentage is fixed Saturday, February 20, 2021 V = Value created by Mr. lafferty @ www. mathsrevision. com 24
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Compound Interest www. mathsrevision. com N 5 Num Calculate the money in the bank after 3 years if the compound interest rate is 7% and the initial value is £ 400. n=3 I =400 ± = increase 1+0. 07=1. 07 V= 400 x (1. 07) Saturday, February 20, 2021 3 = £ 490. 02 created by Mr. lafferty @ www. mathsrevision. com 25
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![Percentages Compound Interest www mathsrevision com N 5 Num Now try N 5 Lifeskills Percentages Compound Interest www. mathsrevision. com N 5 Num Now try N 5 Lifeskills](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-29.jpg)
Percentages Compound Interest www. mathsrevision. com N 5 Num Now try N 5 Lifeskills Ex 3 Ch 3 (page 31) 20 -Feb-21 Created by Mr. Lafferty Maths Dept.
![Starter Questions www mathsrevision com N 5 Num 20 Feb21 Compiled by Mr Lafferty Starter Questions www. mathsrevision. com N 5 Num 20 -Feb-21 Compiled by Mr. Lafferty](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-30.jpg)
Starter Questions www. mathsrevision. com N 5 Num 20 -Feb-21 Compiled by Mr. Lafferty Maths Dept.
![Appreciation Depreciation www mathsrevision com N 5 Num Learning Intention Success Criteria 1 Appreciation & Depreciation www. mathsrevision. com N 5 Num Learning Intention Success Criteria 1.](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-31.jpg)
Appreciation & Depreciation www. mathsrevision. com N 5 Num Learning Intention Success Criteria 1. We are learning about the terms appreciation and depreciation. 1. To know the terms appreciation and depreciation. 2. Show appropriate working when solving problems containing appreciation and depreciation. Saturday, February 20, 2021 created by Mr. lafferty @ www. mathsrevision. com 31
![Appreciation Depreciation www mathsrevision com N 5 Num Appreciation Going up in Appreciation & Depreciation www. mathsrevision. com N 5 Num Appreciation : Going up in](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-32.jpg)
Appreciation & Depreciation www. mathsrevision. com N 5 Num Appreciation : Going up in value e. g. House value Depreciation : Going down Saturday, February 20, 2021 in value e. g. car value created by Mr. lafferty @ www. mathsrevision. com 32
![Quicker Method Easier N 5 Num Average house price in Ayr has appreciated Quicker Method Easier N 5 Num %Average £ house price in Ayr has appreciated](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-33.jpg)
Quicker Method Easier N 5 Num %Average £ house price in Ayr has appreciated by 79% over past 10010 years. 64995 179 If you bought the house for £ 64995 ten years ago in 2005 how much would the house be worth in 2015 ? Appreciation New value Saturday, February 20, 2021 Just working out percentages = 79% x £ 64995 = 0. 79 x £ 64995 = £ 51346. 05 = Old Value + Appreciation = £ 64995 + £ 51346. 05 = £ 116341. 05 created by Mr. lafferty @ www. mathsrevision. com 33
![Appreciation Depreciation www mathsrevision com N 5 Num A Mini Cooper cost Appreciation & Depreciation www. mathsrevision. com N 5 Num A Mini Cooper cost £](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-34.jpg)
Appreciation & Depreciation www. mathsrevision. com N 5 Num A Mini Cooper cost £ 14625 in 2014 At the end 2015 it depreciated by 23% At the end 2016 it will depreciate by a further 16% What will the mini cooper worth at end 2016? End 2003 Depreciation = 23% x £ 14625 = 0. 23 x £ 14625 = £ 3363. 75 New value = Old value - Depreciation = £ 14625 - £ 3363. 75 = £ 11261. 25 Saturday, February 20, 2021 created by Mr. lafferty @ www. mathsrevision. com 34
![Appreciation Depreciation www mathsrevision com N 5 Num End 2015 Depreciation New value Appreciation & Depreciation www. mathsrevision. com N 5 Num End 2015 Depreciation New value](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-35.jpg)
Appreciation & Depreciation www. mathsrevision. com N 5 Num End 2015 Depreciation New value End 2016 Depreciation New Value Saturday, February 20, 2021 = 23% x £ 14625 = 0. 23 x £ 14625 = £ 3363. 75 = Old value - Depreciation = £ 14625 - £ 3363. 75 = £ 11261. 25 = 16% x £ 11261. 25 = 0. 16 x £ 11261. 25 = £ 1801. 80 = £ 11261. 25 - £ 1801. 80 = £ 9459. 45 created by Mr. lafferty @ www. mathsrevision. com 35
![Have you updated your Learning Log Percentages Comparing Percentages www mathsrevision com N Have you updated your Learning Log ? Percentages Comparing Percentages www. mathsrevision. com N](https://slidetodoc.com/presentation_image_h/0519cd4c3d43eedb53c355576beb8554/image-36.jpg)
Have you updated your Learning Log ? Percentages Comparing Percentages www. mathsrevision. com N 5 Num Now try lifeskills Ex 4 Ch 3 (page 29) Are you on Target ? I can ? 20 -Feb-21 Created by Mr. Lafferty Maths Dept.
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