Download presentation

Presentation is loading. Please wait.

Published byPhebe Christine Bennett Modified over 7 years ago

1
MNU 3-07a 2-Jun-16Compiled by Mr. Lafferty Maths Dept. Fractions Decimals Percentages www.mathsrevision.com Conversion between % Fractions and Decimals Finding a Percentage with a Calculator Finding a Percentage without a Calculator

2
MNU 3-07a 2-Jun-16Compiled by Mr. Lafferty Maths Dept. Starter Questions www.mathsrevision.com

3
MNU 3-07a 2-Jun-16Compiled by Mr. Lafferty Maths Dept. Percentages www.mathsrevision.com Learning Intention Success Criteria 1.To understand the process of how to calculate a percentage without a calculator. 1.We are learning how to calculate a percentage without a calculator. 2.Be able to calculate a percentage without a calculator. Without a Calculator

4
MNU 3-07a 2-Jun-16Compiled by Mr. Lafferty Maths Dept. Percentages www.mathsrevision.com To working out a simple percentage it is easier to use the fraction equivalent. You should already know Without a Calculator

5
MNU 3-07a 2-Jun-16Compiled by Mr. Lafferty Maths Dept. Percentages www.mathsrevision.com Without a Calculator

6
MNU 3-07a 2-Jun-16Compiled by Mr. Lafferty Maths Dept. www.mathsrevision.com Find 25% of £40 Percentages 1 0 = 10 = Without a Calculator “of” means multiple

7
MNU 3-07a 2-Jun-16Compiled by Mr. Lafferty Maths Dept. www.mathsrevision.com Find 75% of £300 Percentages 7 5 2 2 5 = 225 = Without a Calculator

8
MNU 3-07a 2-Jun-16Compiled by Mr. Lafferty Maths Dept. www.mathsrevision.com For more difficult percentages use this method. Percentages Find 15% of 360 10 % → 36 5 % → 18 ÷ 2 15 % → 54 Without a Calculator

9
MNU 3-07a 2-Jun-16Compiled by Mr. Lafferty Maths Dept. www.mathsrevision.com Percentages Find 12% of 240 10 % → 24 1 % → 2.4 x 2 12 % → 28.8 2 % → 4.8 Without a Calculator

10
MNU 3-07a 2-Jun-16Compiled by Mr. Lafferty Maths Dept. www.mathsrevision.com Percentages Find 3.5% of 1200 1 % → 12 3 % → 36 x 3 3.5 % → 42 0.5 % → 6 ÷ 2 Without a Calculator

11
MNU 3-07a 2-Jun-16Created by Mr. Lafferty Maths Dept. Now try TJ3a Ex 1 Ch6 (page 46) www.mathsrevision.com Percentages Without a Calculator

12
MNU 3-07a 2-Jun-16Compiled by Mr. Lafferty Maths Dept. Starter Questions www.mathsrevision.com

13
MNU 3-07a 2-Jun-16Compiled by Mr. Lafferty Maths Dept. Percentages www.mathsrevision.com Learning Intention Success Criteria 1.To know how to calculate a percentage using a calculator. 1.We are learning to calculate a percentage of a quantity using a calculator. 2.Show working. With a Calculator

14
MNU 3-07a 2-Jun-16Compiled by Mr. Lafferty Maths Dept. Remember money 2 decimal places Find 17% of £450 Percentages of means multiple www.mathsrevision.com With a Calculator

15
MNU 3-07a www.mathsrevision.com 2-Jun-16Compiled by Mr. Lafferty Maths Dept. Remember !! money 2 decimal places Find 4% of £70 Percentages With a Calculator

16
MNU 3-07a 2-Jun-16Created by Mr. Lafferty Maths Dept. Now try TJ3a Ex 2 Ch6 (page 48) www.mathsrevision.com Percentages With a Calculator

17
MNU 3-07a 2-Jun-16Compiled by Mr. Lafferty Maths Dept. Starter Questions Starter Questions www.mathsrevision.com

18
MNU 3-07a 2-Jun-16Compiled by Mr. Lafferty Maths Dept. Percentages www.mathsrevision.com Learning Intention Success Criteria 1.To know how to convert a fraction to a percentage. 1.We are learning to convert a fraction to a percentage and use them in context. 2.Be able to compare percentages in context. Comparing Percentages

19
MNU 3-07a 2-Jun-16Compiled by Mr. Lafferty Maths Dept. www.mathsrevision.com Converting a fraction to a percentage Percentages Comparing Percentages FractionDecimalPercentage Do the divisionx 100 0.7575% Do the divisionx 100

20
MNU 3-07a 2-Jun-16Compiled by Mr. Lafferty Maths Dept. www.mathsrevision.com Write the following fractions as percentages. = 27% = 29% = 15% Percentages Comparing Percentages

21
MNU 3-07a 2-Jun-16Compiled by Mr. Lafferty Maths Dept. www.mathsrevision.com 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 ? Percentages EnglishMaths Comparing Percentages

22
MNU 3-07a 2-Jun-16Created by Mr. Lafferty Maths Dept. Now try TJ3a Ex 3 Ch6 (page 48) www.mathsrevision.com Percentages Comparing Percentages

Similar presentations

© 2024 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google