Fractions www mathsrevision com Egyptian Fractions Using a

Fractions www. mathsrevision. com Egyptian Fractions Using a to Find Fractions Percentages Using a to Finding a Percentage Increase and Decrease Rates and Working out Rates 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com S 4 2 cm 10 cm 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept. 3 cm

Egyptian Fractions www. mathsrevision. com S 4 Learning Intention 1. To understand what an Egyptian Fraction is and how to solve problems. Success Criteria 1. To understand the term Egyptian Fraction. 2. Be able to solve Egyptian Fraction problems. 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

How long ago is this? Egyptian Fractions S 4 www. mathsrevision. com Egyptian Fractions were invented in 3000 BC A Egyptian Fraction consists of 2 parts. 1 5 13 -Dec-21 Top number ALWAYS 1 is called the numerator Bottom number is called the denominator Compiled by Mr. Lafferty Maths Dept.

Stored in the British Museum in London Egyptian Fractions www. mathsrevision. com S 4 Egyptian Fractions were invented in 3000 BC It was a 25 year old Scotsman, Henry Rhind who brought the first evidence of Egyptian Fractions to Britain. He bought at a market in Luxor, Egypt, in 1858 papyrus scrolls that contained evidence of fractions. These are called the Rhind Mathematical Papyrus 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

Egyptian Fractions S 4 www. mathsrevision. com Write down all the Egyptian Fractions you can see below: 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

Egyptian Fractions ‘of’ means ‘x’ S 4 www. mathsrevision. com How to calculate a fraction of a quantity. of 120 = x 120 Simply divide the quantity by the bottom number 30 60 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

Egyptian Fractions www. mathsrevision. com S 4 Try these 13 -Dec-21 75 70 40 5. 06 90 10. 1 Compiled by Mr. Lafferty Maths Dept.

Egyptian Fractions www. mathsrevision. com S 4 Now try Ex 2. 1 Ch 5 Page 72 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com S 4 20 cm 5 cm 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept. 2 cm

Calculator Fractions www. mathsrevision. com S 4 Q. Find of £ 1800 Calculator Keys 1 13 -Dec-21 8 0 0 6 Compiled by Mr. Lafferty Maths Dept. = 30

Fractions of a quantity www. mathsrevision. com S 4 Learning Intention 1. To show to use a calculator to calculate a fraction of a quantity. Success Criteria 1. To know the 2 step for finding a fraction of a quantity. 2. Be able to calculate the fraction of a quantity. 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

Calculator Fractions www. mathsrevision. com S 4 Q. Find of £ 142. 50 Calculator Keys 1 13 -Dec-21 4 2 . 5 1 Compiled by Mr. Lafferty Maths Dept. = 7. 5

Calculator Fractions www. mathsrevision. com S 4 Q. Of 3500 people surveyed believed that Globe Warming was not a serious problem. How many people believed it was not a problem. Calculator Keys 3 13 -Dec-21 5 0 0 2 Compiled by Mr. Lafferty Maths Dept. = 140

Calculator Fractions www. mathsrevision. com S 4 Now try Ex 2. 2 Ch 5 Page 74 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com S 4 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

Percentages www. mathsrevision. com S 4 Learning Intention 1. To explain what the term percentage means and how it is connected to Egyptian Fractions. Success Criteria 1. To understand the term percentage. 2. Understand connection between percentage, and Egyptian Fractions. 3. Find a percentage of a quantity. 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

31 out of a 100 Percentages www. mathsrevision. com S 4 When a shape is divided into 100 ‘bits’ each bit is called “ 1 percent” = 1% 31 % means 7 % means 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept. 7 out of a 100

Percentages www. mathsrevision. com S 4 The basic Percentages (%) are connected with the Egyptian Fractions. You have 1 minute to write down the basic percentages and there equivalent fraction 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

Percentages www. mathsrevision. com S 4 Answers 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

Percentages S 4 www. mathsrevision. com Q. Change these percentages to fractions out of a 100 Q. Change these fractions to percentages 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

Percentages S 4 www. mathsrevision. com Q. Change these percentages to decimals. Q. Change these decimals to percentages 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

Percentages www. mathsrevision. com S 4 Q. Find 50% of 70 35 Q. Find 25% of 180 45 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

Percentages www. mathsrevision. com S 4 Now try Ex 3. 1 Ch 5 Page 76 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com S 4 6 cm 3 cm 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept. 1 cm

Percentages (Calculator) www. mathsrevision. com S 4 Learning Intention 1. To understand how to calculate a percentage of a quantity using a calculator. 13 -Dec-21 Success Criteria 1. Use a calculator to find a percentage of a quantity. 2. Show all working. Compiled by Mr. Lafferty Maths Dept.

Remember money Percentages is always 2 decimal places S 4 www. mathsrevision. com Q. Find 17% of £ 450 = £ 76. 50 Calculator Keys 4 13 -Dec-21 5 0 1 0 x Compiled by Mr. Lafferty Maths Dept. 1 7 =

Remember money Percentages is always 2 decimal places S 4 www. mathsrevision. com Q. Find 4% of £ 70 = £ 2. 80 Calculator Keys 7 13 -Dec-21 0 x Compiled by Mr. Lafferty Maths Dept. 4 =

Calculator Fractions S 4 www. mathsrevision. com Q. 73% of 3600 people in a survey have brown eyes. How many people have brown eyes. Calculator Keys 3 13 -Dec-21 6 5 0 1 0 x Compiled by Mr. Lafferty Maths Dept. 7 3 =

Percentages www. mathsrevision. com S 4 Now try Ex 3. 2 Ch 5 Page 78 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com S 4 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

Percentage Increase / Decrease www. mathsrevision. com S 4 Learning Intention 1. To explain some simple increases and decreases in percentages using shop prices. Success Criteria 1. Understand terms increase /decrease for percentages. 2. Calculate simple increases / decreases in percentages. 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

S 4 Percentage Increase / Decrease www. mathsrevision. com Example 1 In a sale the cost of a jumper is reduced by 10%. What is the sale price of the jumper. Original Price £ 35 Sale Price = Created by Mr. Lafferty Maths Dept

S 4 Percentage Increase / Decrease www. mathsrevision. com Example 2 The total hours of sunshine in June was 260. The total for July was 5% higher than June. . What is the total hours of sunshine in July Total Hours = Created by Mr. Lafferty Maths Dept

Simple Percentages www. mathsrevision. com S 4 Now try Exercise 4. 1 Ch 5 Page 80 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com S 4 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

Rates www. mathsrevision. com S 4 Learning Intention 1. To explain some more basic percentages. Success Criteria 1. To know the basic percentages. 2. Calculate basic percentage without a calculator. 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.

www. mathsrevision. com Rates Example 1 : Mick the mechanic hourly rate of pay is £ 6. 50. Last week he worked 5 hours. What is his basic pay? Pay is = £ 6. 50 x 5 = £ 32. 50 13 -Dec-21 Created by Mr. Lafferty Maths Dept.

www. mathsrevision. com Rates Example 2 : Jim is a joiner his hourly rate of pay is £ 10. 50. He works 40 hours a week. What is his basic pay? Pay is = £ 10. 50 x 40 = £ 420. 00 13 -Dec-21 Created by Mr. Lafferty Maths Dept.

Rates www. mathsrevision. com Example 3 : Wendy can type 300 words in 6 minutes. How many words does she type per minute. Words per minute 300 ÷ 6 = 50 words 13 -Dec-21 Created by Mr. Lafferty Maths Dept.

Rates www. mathsrevision. com Example 4 : Six bags of crisps were bought for £ 2. 10. How much for 1 bag of crisps. 1 bag = £ 2. 10 ÷ 6 = £ 0. 35 13 -Dec-21 Created by Mr. Lafferty Maths Dept.

Rates www. mathsrevision. com S 4 Now try Ex 5. 1 & 5. 2 Ch 5 Page 82 13 -Dec-21 Compiled by Mr. Lafferty Maths Dept.