Quick Percentages

A Maths Starter Of The Day

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Percentages to include at random:

Amounts to be used at random:

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Topics: Starter | Percentages

  • Maggie Harrity, Torquay Devon
  • Use for KS2 as M/O starter. My year 5 children love it!
  • Julie Reakes, The English College, Dubai
  • It's great to have a starter that's timed and focuses the attention of everyone fully. I told them in advance I would do 10 then record their percentages.
  • Trish Narayanan, Lawnswood School, Leeds
  • I liked the look of this page but, unfortunately, it doesn't seem to work - no questions appear!
  • Transum,
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    In the meantime click here for a version of this starter not requiring Flash Player.
  • Mr Bobingson, Sheeepsinvile Primary School
  • I think this was a jolly good quiz.
  • Rachel, Carnoustie High School
  • This was very good because we have just done percentages and we neded more practice.

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% - This is the percent symbol.
Percent means 'out of 100'.

Find 50%:

As 50 is half of 100, then 50% means half. To find 50% of a quantity you need to halve (or divide by two). So 50% of 6 is 3.

Find 10%:

As 10 is one tenth of 100, then 10% means 'one tenth of'. To find 10% of a quantity you need to divide it by ten. So 10% of 800 is 80.

Find 25%:

As 25 is one quarter of 100, then 25% means 'one quarter of'. To find 25% of a quantity you need to divide it by four. So 25% of 20 is 5.

Another way of finding 25% of a quantity is first finding 50% then dividing the result by 2.

Find 33⅓%:

As 33⅓ is one third of 100, then 33⅓% means 'one third of'. To find 33⅓% of a quantity you need to divide it by three. So 33⅓% of 30 is 10.

Find 1%:

As 1 is one hundredth of 100, then 1% means 'one hundredth of'. To find 1% of a quantity you need to divide it by 100. So 1% of 800 is 8.

Find other percentages:

Other percentages can be found by combining some of the techniques mentioned above. Here are some examples:

If you need to use a calculator to check your working. See Calculator Workout skill 3.

Zero percent fat free

So if this yoghurt is 0% fat free does that mean it is full of fat?
Does the '0%' and the 'free' cancel each other?

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Laptops In Lessons

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