Ratios & Percentages
Math · Foundational · Lesson 6 of 9

Per Hundred

Percent of a number

An interactive lesson with 6 steps, about 5 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.

What you’ll learn

  • p%p\% means p100\frac{p}{100}. To find p%p\% of xx, multiply.
  • aa as a percentage of bb is ab×100%\frac{a}{b} \times 100\%.
  • Convert to percentages to compare fractions and decimals; x% of y equals y% of x.

Steps

  1. A tip
  2. Percent means per hundred
  3. Shade the percentage
  4. Test score
  5. Fractions, decimals, percents
  6. The swap trick