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Interest (Simple) - Principle from Interest, Rate, and Time (Level 3)

The topics in this unit focus on introducing simple interest, principle, rate, and time, and how to calculate any of them given the others. Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

Interest (Simple) - Principle from Interest, Rate, and Time

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What is the principle in this simple interest situation?

Interest =$60Rate =5%Time =3yrsPrinciple =$?\begin{align*}\text{Interest } &= \$60\\ \text{Rate } &= 5\%\\ \text{Time } &= 3\text{yrs}\\ \\ \text{Principle } &= \$?\end{align*}