Percentage charts: conversions, hundred grids, percentage formulas

Printable percentage charts for students who convert between fractions, decimals and percents. One chart is a table of conversions such as 1/4, 0.25 and 25%. One shows four ten-by-ten grids shaded at 25, 50, 75 and 100 per cent, and one lists three formulas for percentage, part and change. Students keep them in a maths folder. Type a direction such as discounts or pie charts, and the chart is drawn for it.

• a reference chart in a maths folder
• a conversion table for a test
• a lesson on percent grids
• a formula sheet for percentage change

Frequently asked questions

Which conversions are in the table?

One half, one quarter, three quarters, one fifth and one tenth, each shown as a fraction, a decimal and a percentage.

What do the shaded grids show?

Ten-by-ten grids with 25, 50, 75 or 100 squares shaded, each labelled with its percentage.

Which formulas are on the chart?

Percentage, part and change in percentage, each in a boxed rule.

Can I change the subject?

Yes. Type a direction such as discounts or to 200% and the chart is drawn for it. It is a request, not a guaranteed result.

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