Compound interest
Compounding means a return can itself earn a return. At a constant 5%, 1,000 becomes 1,050 after one year and 1,102.50 after two. The e…
Change one input. A small difference today can make a big difference in years.
Understand the numbers that shape your life. Short lessons and personal experiments.
Compounding means a return can itself earn a return. At a constant 5%, 1,000 becomes 1,050 after one year and 1,102.50 after two. The e…
A loan payment contains principal and interest. Early payments contain more interest because debt is higher. A longer term lowers the p…
A budget shows net income minus expenses. Divide annual bills by 12 to avoid an optimistic plan. Base a buffer on essential spending. A…
Inflation reduces the purchasing power of uninvested cash. At 3% annually, 1,000 has about 744 of today’s purchasing power after ten ye…
Bring real decisions into the classroom. Students explore, compare and explain results.
ModernScholar educational games and quizzes — complement the calculators with interactive practice in mathematics and other subjects.
EduPrintables printable worksheets — explore materials and tools for preparing exercises for the classroom and practice at home.