Common Core: High School - Number and Quantity

This subject covers the foundational concepts of number and quantity, focusing on real numbers, complex numbers, and their applications in various mathematical contexts.

Practical Applications

Personal Finance: Using Numbers in Daily Life

Budgeting and Money Math

Numbers are everywhere in personal finance! Understanding real numbers helps you manage money, budget, save, and make smart decisions.

Applying Number Sense

  • Adding and subtracting amounts for budgeting
  • Calculating percentages for discounts or interest
  • Understanding decimals when shopping or splitting bills

Why It Matters

Being comfortable with numbers means being able to handle real-life challenges, like saving for a phone or tracking your spending.

Top Tips

  • Always double-check your calculations
  • Use estimation to quickly check if an answer makes sense

Examples

  • Adding up the cost of items in your shopping cart.

  • Calculating a 20% tip at a restaurant.