Numbers

Number Concepts

• Natural numbers elementary Positive counting numbers: 1, 2, 3, ...
  • Counting
    • Number line with positive numbers
  • Numeration
    • Decimal numeration
  • Addition and subtraction of positive whole numbers
  • Multiplication and division of positive whole numbers
  • Exponents
  • Expressions
    • Order of operations
    • Evaluating expressions
  • Rounding and estimating
• Integers Positive and negative whole numbers and zero: ..., -3, -2, -1, 0, 1, 2, 3, ...
  • Negative numbers
  • Number line with negative numbers
  • Addition of positive and negative whole numbers
  • Subtraction of positive and negative whole numbers
  • Multiplication and division of positive and negative whole numbers