Definitions and facts from the NSW Year 8 Percentages Topic
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| To convert a fraction to a percentage. | multiply the fraction by 100
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| % is the symbol for | Percent
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| Percentages are fractions measured out of ____ | 100
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| To convert a decimal to a percentage | multiply the decimal by 100
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| To convert a percentage to a decimal | divide the percentage by 100
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| To convert a percentage to a fraction | Change the % sign to a denominator of 100.
Simplify the fraction if required.
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| To express one quantity as a percentage of another | Write a fraction with the ‘part amount’ as the numerator and the ‘whole amount’ as the denominator.
Convert the fraction to a percentage by multiplying by 100%
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| To find a certain percentage of a quantity | Convert the required percentage to a decimal
Change the ‘of’ to a multiplication sign.
Multiply the decimal formed from the percentage by the amount
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| The unitary method | involves finding the value of ‘one unit’, usually 1%, then using this
information to answer the question.
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| Profit | selling price – cost price
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| Loss | cost price – selling price
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
wdobson
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