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

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

Level 3

This math topic focuses on calculating the principal amount in various simple interest scenarios using given values for interest, rate, and time. It helps students practice the application of the simple interest formula to determine the initial amount of money invested or borrowed, reinforcing understanding of percentages and basic algebraic manipulation related to financial mathematics. Each problem is formatted with multiple-choice answers, enhancing problem-solving skills and proficiency in handling real-life financial calculations regarding interest and loans.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

ViewUnit

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

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.

What is the principle in this simple interest situation?

\begin{align*}\text{Interest } &= \$420\\ \text{Rate } &= 35\%\\ \text{Time } &= 3\text{yrs}\\ \\ \text{Principle } &= \$?\end{align*}

Earned ?

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

Math worksheet on 'Interest (Simple) - Principle from Interest, Rate, and Time (Level 3)'. Part of a broader unit on 'Percents and Simple Interest - Practice' Learn online: app.mobius.academy/math/units/percents_and_simple_interest_practice/

What is the principle in this simple interest situation?

$A LaTex expression showing \begin{align*}\text{Interest } &= \$360\\ \text{Rate } &= 15\%\\ \text{Time } &= 3\text{yrs}\\ \\ \text{Principle } &= \$?\end{align*}$

What is the principle in this simple interest situation?

$A LaTex expression showing \begin{align*}\text{Interest } &= \$630\\ \text{Rate } &= 15\%\\ \text{Time } &= 6\text{yrs}\\ \\ \text{Principle } &= \$?\end{align*}$

What is the principle in this simple interest situation?

$A LaTex expression showing \begin{align*}\text{Interest } &= \$350\\ \text{Rate } &= 10\%\\ \text{Time } &= 7\text{yrs}\\ \\ \text{Principle } &= \$?\end{align*}$

What is the principle in this simple interest situation?

$A LaTex expression showing \begin{align*}\text{Interest } &= \$90\\ \text{Rate } &= 30\%\\ \text{Time } &= 3\text{yrs}\\ \\ \text{Principle } &= \$?\end{align*}$

What is the principle in this simple interest situation?

$A LaTex expression showing \begin{align*}\text{Interest } &= \$100\\ \text{Rate } &= 10\%\\ \text{Time } &= 5\text{yrs}\\ \\ \text{Principle } &= \$?\end{align*}$

What is the principle in this simple interest situation?

$A LaTex expression showing \begin{align*}\text{Interest } &= \$80\\ \text{Rate } &= 5\%\\ \text{Time } &= 8\text{yrs}\\ \\ \text{Principle } &= \$?\end{align*}$

$A LaTex expression showing \begin{align*}\text{Interest } &= \$1714.9999999999998\\ \text{Rate } &= 35\%\\ \text{Time } &= 7\text{yrs}\\ \\ \text{Principle } &= \$?\end{align*}$

What is the principle in this simple interest situation?

Practice:

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

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