Interest (Simple) - Base Formula to Variable Formula (Level 1)

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.

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Interest (Simple) - Base Formula to Variable Formula

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


Given the simple interest formula, how would you solve for Rate?

I=PRTR=?I=PRT\\ R = ?

Interest (Simple) - Base Formula to Variable Formula Worksheet

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Math worksheet on 'Interest (Simple) - Base Formula to Variable Formula (Level 1)'. Part of a broader unit on 'Percents and Simple Interest - Practice' Learn online: app.mobius.academy/math/units/percents_and_simple_interest_practice/
1
A LaTex expression showing I=PRT\\ T = ?
Given the simple interest formula, how would you solve for Time?
a A LaTex expression showing T=I over PR
b A LaTex expression showing T=P over IR
2
A LaTex expression showing I=PRT\\ P = ?
Given the simple interest formula, how would you solve for Principle?
a A LaTex expression showing P=R over IT
b A LaTex expression showing P=I over RT
3
A LaTex expression showing I=PRT\\ R = ?
Given the simple interest formula, how would you solve for Rate?
a A LaTex expression showing R=I over PT
b A LaTex expression showing R=T over IP