Basic Arithmetic

Basic Arithmetic covers fundamental mathematical operations including addition, subtraction, multiplication, and division.

AdditionSubtractionMultiplicationDivision
Order of OperationsWord ProblemsProperties of OperationsInverse Operations
Shopping and Making ChangeCooking and MeasuringPlanning and Time Management
Estimation and Mental MathShowing Your Work and Double-CheckingBreaking Down Problems
AdditionSubtractionMultiplicationDivisionOrder of OperationsWord ProblemsProperties of Operat...Inverse OperationsShopping and Making ...Cooking and Measurin...Planning and Time Ma...Estimation and Menta...Showing Your Work an...Breaking Down Proble...
Study Strategies

Showing Your Work and Double-Checking

The Power of Writing It Down

Writing each step of your work helps you keep track and spot mistakes. Double-checking your answers makes sure you didn't miss anything!

Tips for Showing and Checking

  • Write each step clearly on paper
  • Use inverse operations to check your answer
  • Ask yourself: does this answer make sense?

Making a habit of writing and checking helps you become a math superstar!

Examples

  • After solving 7 + 8 = 15, check by doing 15 - 8 = 7

  • Write out each step in a long division problem to see where you might have gone wrong

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Breaking Down Problems