Practice Math

Many students taking Introductory Macroeconomics struggle with concepts from algebra. This post is intended to point you free resources that will help you work through some of these difficulties. Most of these have limits to their free-access.

Percent change

• IXL-Algebra 1
  • D.1 Convert between percents, fractions, and decimals
  • D.2 Solve percent equations
  • D.4 Percent of change
  • D.6 Percent of a number: tax, discount, and more
  • D.7 Find the percent: tax, discount, and more
  • D.8 Multi-step problems with percents

Variable expressions and equations

• IXL-Algebra 1
  • I.2 Simplify variable expressions involving like terms and the distributive property
  • I.3 Identify equivalent linear expressions
  • I.5 Does x satisfy the equation?
  • I.6 Which x satisfies an equation?
  • I.7 Solve equations using order of operations
  • I.8 Rearrange multi-variable equations

Solving equations

• Khan Academy-Algebra
  • Two-step equations
  • Linear equations with variables on both sides
  • Linear equations with parentheses
• Mathematica-Problem Generator
  • Two-step equations
• IXL-Algebra 1
  • J.3 Solve one-step linear equations
  • J.4 Solve two-step linear equations
  • J.5 Solve advanced linear equations
  • J.6 Solve equations with variables on both sides
• Math.com-Algebra
  • Two-step equations and inequalities

Linear equations

• Khan Academy-Algebra
  • Linear equations and graphs

Exponents

• IXL-Algebra 1
  • V.1 Exponents with integer bases
  • V.2 Exponents with decimal and fractional bases
  • V.3 Negative exponents
  • V.4 Multiplication with exponents
  • V.5 Division with exponents
  • V.6 Multiplication and division with exponents
  • V.7 Power rule