What’s on the Simple & Compound Interest poster
The rule, 3 worked examples, and the mistake everyone makes.
- Simple interest is paid on the principal only. Compound interest is paid on the accum…
- simple: P(1 + rt) · compound: P(1 + r)^t
- £1,000 at 5% for 10 years, simple = £1,500
- The same, compound = £1,629
- Over 30 years, compound = £4,322
- Common mistake: Assuming the difference is small → It grows exponentially with time
Most savings and debt compound. Simple interest is now unusual outside some fixed-term loans.
Questions about the Simple & Compound Interest poster
- What’s on the Simple & Compound Interest poster?
- The rule, 3 worked examples, and the mistake everyone makes. Simple interest is paid on the principal only. Compound interest is paid on the accum…; simple: P(1 + rt) · compound: P(1 + r)^t; £1,000 at 5% for 10 years, simple = £1,500; The same, compound = £1,629; Over 30 years, compound = £4,322; Common mistake: Assuming the difference is small → It grows exponentially with time. Most savings and debt compound. Simple interest is now unusual outside some fixed-term loans.
- Who is the Simple & Compound Interest poster for?
- Simple & Compound Interest belongs to the Money section rather than to a school year, because money is not something one grade owns. Anyone learning growth can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Simple & Compound Interest poster?
- Simple interest is linear. Compound interest curves, and the curve is the whole story. A wall chart earns its place by being glanceable from where the work is happening, so Simple & Compound Interest belongs on the wall where that money work actually happens, within glancing distance, rather than filed away.
- What other posters go with Simple & Compound Interest?
- Turning Savings into Income, APR & AER and Compound Interest sit alongside Simple & Compound Interest in the Money section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Turning Savings into IncomeAPR & AERCompound Interest
- Is the Simple & Compound Interest poster free to download and print?
- Yes. Simple & Compound Interest downloads as a free PDF with no account, no email and no watermark, like everything else in the Money section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Simple & Compound Interest poster print at?
- Simple & Compound Interest is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Simple & Compound Interest loses nothing.Printing guide
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