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Whiteboardmaths.com © 2004 All rights reserved 5 7 2 1.

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Presentation on theme: "Whiteboardmaths.com © 2004 All rights reserved 5 7 2 1."— Presentation transcript:

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2 Whiteboardmaths.com © 2004 All rights reserved 5 7 2 1

3 1/10 25% 25/100 1/4 Percentages A percentage is simply a fraction out of 100. 1% 1/100 - 5% 5/100 10% 10/100 15% 15/100 3/20 20% 20/100 1/51/20 30% 30/100 3/10 35% 35/100 7/20 40% 40/100 2/5 45% 45/100 9/20 50% 50/100 1/2 55% 55/100 11/20 60% 60/100 3/5 65% 65/100 13/20 70% 70/100 7/10 75% 75/100 3/4 80% 80/100 4/5 85% 85/100 17/20 90% 90/100 9/10 95% 95/100 19/20 100% 100/100 - 1/10

4 1%5%10%15%20%25%30%35%40%45%50% 1/1005/10010/10015/10020/10025/10030/10035/10040/10045/10050/100 - 1/201/103/201/51/43/107/202/59/201/2 - 55%60%65%70%75%80%85%90%95%100% -55/10060/10065/10070/10075/10080/10085/10090/10095/100100/100 - 11/203/513/207/103/44/517/209/1019/20- 5% Static

5 1/101/51/42/51/23/207/20 5%60%75%45%80%30%90% 1/203/53/49/204/53/109/10

6 40%30%35%25%60%75%80% Percentages Remember: a percentage is a fraction out of 100. 1/101/20 Use the diagrams above to help you write the following fractions as percentages. 2/53/107/201/43/53/44/5 5%

7 Choose a percentage then click the green button below it to view. 5%10%15%20%25% 30%35%40%45%50% 55%60%65%70%75% 80%85%90%95%100% % % % % Interactive

8 Percentages 5% Click Button to view GO Click Button to return 1/20 1/10 1/20 Remember: a percentage is a fraction out of 100. 5%

9 Percentages 10% 1/10 Click Button to view GO Click Button to return 1/10 1/20 Remember: a percentage is a fraction out of 100. 5%

10 Percentages 15% 3/20 Click Button to view GO Click Button to return 1/10 1/20 Remember: a percentage is a fraction out of 100. 5%

11 Percentages 20% 1/5 Click Button to view GO Click Button to return 1/10 1/20 Remember: a percentage is a fraction out of 100. 5%

12 Percentages 25% 1/4 Click Button to view GO Click Button to return 1/10 1/20 Remember: a percentage is a fraction out of 100. 5%

13 Percentages 30% 3/10 Click Button to view GO Click Button to return 1/10 1/20 Remember: a percentage is a fraction out of 100. 5%

14 Percentages 35% 7/20 Click Button to view GO Click Button to return 1/10 1/20 Remember: a percentage is a fraction out of 100. 5%

15 Percentages 40% Click Button to view GO Click Button to return 2/5 1/10 1/20 Remember: a percentage is a fraction out of 100. 5%

16 Percentages 45% Click Button to view GO Click Button to return 1/10 1/20 Remember: a percentage is a fraction out of 100. 5% 9/20

17 Percentages 50% Click Button to view GO Click Button to return 1/2 1/10 1/20 Remember: a percentage is a fraction out of 100. 5%

18 Percentages 55% Click Button to view GO Click Button to return 11/20 1/10 1/20 Remember: a percentage is a fraction out of 100. 5%

19 Percentages 60% Click Button to view GO Click Button to return 3/5 1/10 1/20 Remember: a percentage is a fraction out of 100. 5%

20 Percentages 65% Click Button to view GO Click Button to return 13/20 1/10 1/20 Remember: a percentage is a fraction out of 100. 5%

21 Percentages 70% Click Button to view GO Click Button to return 7/10 1/10 1/20 Remember: a percentage is a fraction out of 100. 5%

22 Percentages 75% Click Button to view GO Click Button to return 3/4 1/10 1/20 Remember: a percentage is a fraction out of 100. 5%

23 Percentages 80% Click Button to view GO Click Button to return 1/10 1/20 Remember: a percentage is a fraction out of 100. 5% 4/5

24 Percentages 85% Click Button to view GO Click Button to return 17/20 1/10 1/20 Remember: a percentage is a fraction out of 100. 5%

25 1/10 1/20 Percentages 90% Click Button to view GO Click Button to return 9/10 Remember: a percentage is a fraction out of 100. 5%

26 1/10 1/20 Percentages 95% Click Button to view GO Click Button to return 19/20 Remember: a percentage is a fraction out of 100. 5%

27 1/10 1/20 Percentages 100% Click Button to view GO Click Button to return Remember: a percentage is a fraction out of 100. 5%

28 Worksheet


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