← Math: Finance

⇄ Sync
Length

Program
History and progress transfer
Choose a topic — problems will keep coming one after another for as long as you like

Theory of all steps of the program by blocks. Open a topic to read it.

How a session goes

A session is 10–90 minutes: a warm-up on what you've learned, new steps with short theory and problems, practice. Each problem gives two tries: 100 points on the first, 60 on the second; after the second mistake the correct answer is shown. You move on in the program if 70 % of the problems are solved.

Problems with numbers are generated anew every time a step is repeated. A fractional answer can be entered with a comma, a point or as a fraction: 0,5, 0.5, 1/2. In Practice any topic is available without a timer.

About the course

Everyday money math: percentages and percentage points, successive discounts, simple and compound interest, the rule of 72, inflation and real return, loans (annuity, declining payments, overpayment, effective rate), budget, savings, taxes and currency exchange. Calculations only, no advice. Grade 7–8 math is enough.

Course program: 26 lessons

Percentages

  1. Percent of a number
  2. Percentage points
  3. Successive discounts and markups
  4. Percentages: more
  5. Checkpoint: percentages

How money grows

  1. Simple interest
  2. Compound interest
  3. Compound interest: more
  4. The rule of 72
  5. Checkpoint: how money grows

Inflation

  1. Inflation
  2. Real return
  3. Inflation: more
  4. Checkpoint: inflation

Loans

  1. Declining (equal-principal) payment
  2. Annuity payment
  3. Loans: more
  4. Overpayment and comparing loans
  5. Effective rate
  6. Checkpoint: loans

Budget, taxes, currency

  1. Budget and expense shares
  2. Saving with regular deposits
  3. Tax as a percentage
  4. Exchange rate and fees
  5. Money in everyday life: more
  6. Checkpoint: budget, taxes, currency