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, ...

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