Free percentages worksheets and activities

This section includes guidance on how to calculate percentage values. Note: Be sure to discuss real-life uses of percentages with your child. Good examples include percentage used for increases in pay/ wages, for interest from savings at a bank, and for results in exams at school.

Alternatively, do you want to save dozens of hours in time? Get your evenings and weekends back? Be fully prepared to teach percentages to your students from Grades K-8?

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Practice percentage calculations with worksheets and other printables.

See how to calculate percentages with illustrated guidance and examples.

Convert between percent, fractions, decimals.

Check percent and percentage calculations.

Percentage Mini-lesson

The three short mini-lessons above are on calculating with percent. Lesson #1 is an introduction to percent, lesson #2 shows how to calculate a percentage e.g. what is 20% of 70? Lesson #3 shows both how to find a percent e.g. What percent is 25 out of 40? and also how to calculate the base e.g. If 30% of an amount is 45, what is the amount?

You might also like to try this "How much is shaded?" target game for a bit of practice with percent.

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Keep the points below in mind when you are tutoring your children on percent. Percent is a very commonly used mathematical concept in everyday life and it has also proven to be a hard concept for many to grasp and understand.

Teaching Percent

Instruction should focus on what percent is as opposed to just looking at procedures and the quickest way to compute it. Similarly, there should be a move away from just imparting the knowledge that 50% is one-half. The importance of the base of 100 should be introduced early and often.

The language of percent is extremely important. Students need to understand proportion and must be able to express this understanding using the language of percent. They must identify implicit referents. e.g. before solving a problem they must ask themselves, “30% of what?”

Lots of graphical representations should be used as examples to help develop students’ proportional reasoning skills. These should use real-life examples whenever possible that are relevant to students. e.g. sports performance as opposed to interest rates.

Typical errors and their causes

The language surrounding percent can often be difficult for students. It often needs to be very precise. A very small change in wording can be associated with a completely different type of situation and problem. Questions are often not explicitly complete and students have to infer what the question refers to. e.g. “The unemployment rate is 9% .” not “The unemployment rate is 9% of the working-aged population.”

The issues above cause students to make errors such as those below:

  • Ignoring the % symbol and then adding it back into the solution arbitrarily
  • Incorrectly applying conversion rules e.g. since 45% = 0.45, then 7% = .7 or 140% = .14
  • A general tendency to manipulate numerals rather than to apply reasoned thinking
  • Seeing the % symbol as a label in the same way as units are e.g. 6m for 6 meters