Support · Mathematics Standard 11–12 – Year 12 – Standard 1 · Investment

Support Calculate simple interest for different interest rates and time periods using the formula I = Prn where I = simple interest, P = principal, r = interest rate per time period and n = number of time periods

Resources for the prerequisite content of this dot point: earlier-stage (or earlier sub-level) dot points in the same strand that students usually need first. Use these to fill gaps before or alongside the core lesson.

Prerequisite links are draft mappings generated from the syllabus structure (earlier stage, same strand, closest content). They are being reviewed by teachers. Spot a poor match? Tell us.

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Prerequisite dot points

Establish and use the formula I = Prn to find simple interest where I =simple interest, P =principal, r =interest rate per time period and n = number of time periods

Stage 5 · Financial mathematics A Draft mapping

Establish and use the formula FV = PV(1 + r)ⁿ to find compound interest where FV = future value of the investment, PV = present value of the investment, r = interest rate per time period and n = number of time periods

Stage 5 · Financial mathematics B Draft mapping

Examine compound interest for up to 3 time periods using repetition of the formula for simple interest

Stage 5 · Financial mathematics B Draft mapping

  • Interactive toolStarter
    Mathsisfun: Compound interest
    Maths Is Fun · Interactive (browser) · Free · Link checked 2026-10-15 · No prep
    Use it for: Compound vs simple interest with tables and a calculator.