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Unit 1
Math vocabulary words for unit 1
| Term | Definition |
|---|---|
| Sum | the answer to an addition problem |
| Difference | the answer to a subtraction problem |
| Dividend | the number that is being divided |
| Divisor | the number the dividend is being divided by |
| Estimation | about, close to a benchmark number (10, 100, 1000), reasonable, almost |
| Factor | a number multiplied by another number to find a product |
| Fluency | quickly, efficiently and correctly |
| Product | the answer to a multiplication problem |
| Quotient | the answer to a division problem |
| Rounding | method for estimating a number by increasing or retaining a specific place value digit according to specific rules and changing all trailing digits to zero |
| Strip diagram | a linear model used to show number relationships |
| Whole numbers | the set of counting (natural) numbers and zero {0, 1, 2, 3, ..., n} |
| Positive numbers | any number greater than zero |
| Rational numbers | numbers that can be written as fractions, whole numbers or decimals |
| Equation | a mathematical sentence involving numbers, letters, and operations where both sides of the equal sign are the same |
| Expression | a mathematical sentence involving only numbers, letter, and 1 or more operation symbols with NO equal sign |