Basic math glossary-W define words beginning with the letter W**w**: w is an abbreviation for width.

**Weak inequality**: An inequality which allows the possibility of equality with either the symbol smaller or equal (≤) or bigger or equal (≥).

**Week**: A length of time that is equal to 7 days.

**Weight**: A measure of how heavy an object is.

**Weighted average**: An average where certain values or numbers in the dataset are more important than others. **Whole numbers**: Whole numbers include the natural numbers and 0, such as 0, 1, 2, 3, 4, 5, 6, ...**Width**:The distance across or the measure of how wide something is.

**Winding number**: The number of times a closed curve moves counterclockwise around a point.

**Withdrawal**: The amount of money taken out of a bank account.

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