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Finding Percentages

Finding Percentages. per cent means each hundred. Objectives: To understand percentage (%) as the number of parts in every hundred; To find percentages of numbers or quantities. Find 10% of 100. So divide the whole amount by 100 to find 1% ( 100÷100=1). 100.

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Finding Percentages

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  1. Finding Percentages

  2. per centmeanseach hundred

  3. Objectives:To understand percentage (%) as the number of parts in every hundred;To find percentages of numbers or quantities.

  4. Find 10% of 100. So divide the whole amount by 100 to find 1% ( 100÷100=1) 100 1% of 100 is 1 then multiply that by the percentage you need (1 × 10 = 10) so 10% of 100 is 10

  5. Find 10% of 700. So 700÷100=7 700 1% of 700 is 7. Then multiply by the amount you need 7×10=70 so 10% of 700 is 70

  6. Find 10% of 625 625 1% of 625 is 6.25 so 10% of 625 is 62.5

  7. 10 per centis the same asone tenth(divide by 10)

  8. Find 50% of 100 100 1% of 100 is 1 so 50% of 100 is 50

  9. Find 50% of 360 360 1% of 360 is 3.6 so 50% of 360 is 180

  10. Find 50% of 280 280 1% of 280 is 2.8 so 50% of 280 is 140

  11. Find 50% of 610 610 1% of 610 is 6.1 so 50% of 610 is 305

  12. 50 per centis the same asone half(divide by 2)

  13. Find 25% of 100 100 1% of 100 is 1 so 25% of 100 is 25

  14. Find 25% of 500 500 1% of 500 is 5 so 25% of 500 is 125

  15. Find 25% of 720 720 1% of 720 is 7.2 so 25% of 720 is 180

  16. Find 25% of 460 460 1% of 460 is 4.6 so 25% of 460 is 115

  17. 25 per centis the same asone quarter(divide by 4)

  18. You have been reminded that percentage (%) is the number of parts in every hundred.You have been reminded that to find a percentage you have to divide the whole amount number by 100 to find 1% then multiply that by the percentage amount you need.Try http://www.bgfl.org/bgfl/custom/resources_ftp/client_ftp/ks2/maths/percentages/index.htm

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