Foundation
USE WHEN
Repeated percentage growth is described as interest, investment, population or value accumulation.
BEST METHOD
Growth Multiplier Method
TARGET
90–120 sec
MASTERY
not started
Repeated percentage growth is described as interest, investment, population or value accumulation.
CI is the multiplier version of repeated percentage growth; SI adds equal interest on original principal.
For different annual CI rates, multiply annual factors.
Treat CI as repeated percentage growth; multiply annual factors directly.
Timed drill
Identify the base or invariant before you calculate.
Attempt first · Standard Example
Attempt first · CAT-Level Example
3-level practice ladder
Foundation
CAT Standard
Advanced / Hybrid
cat 2023 slot 2 compound-interest loan; cat 2024 slot 3 compound-growth investment; cat 2024 slot 2 mixed ci/si investment.