Topic 03Mathematics: Analysis and Approaches
A.3 Algebraic Foundations
Compress numbers of any scale with standard form, model money over time with compound interest, depreciation, and annuities, and learn the LHS-to-RHS structure of a deductive proof.
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Standard form — a × 10^kSign up
Standard form a × 10^k
25 min
Financial applications — compound interest, depreciation, annuitiesSign up
Compound interest — single deposit · Depreciation · Annuities — repeated deposits + interest
35 min
Simple deductive proof — identities and the LHS-to-RHS structureSign up
Identity vs equation · LHS-to-RHS proof
25 min