
Visual model
Simple interest triangle
Simple interest grows from three inputs: principal, rate, and time.Exam cue: Show the formula before substituting values.
- 1P, R, T -> SI: calculate
- 2SI -> Amount: add to principal for
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Lesson
Calculate simple interest using principal, rate, and time in complete years.
Learning objectives
Identify principal, rate, and time from a question.
Use the simple interest formula correctly.
Find amount by adding principal and interest.
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