| A | B |
|---|
| Expression | a mathematical sentence that can contain numbers, variable, and operations |
| Order of Operations | the order to follow when performing operations |
| Estimate | an answer that is not exact |
| Round | to approximate a number to a given place |
| Compatible Numbers | numbers that have sums or products that are easy to find and work with |
| Sequence | an ordered list of numbers or objects |
| Rule | an explanation of how to create or extend a pattern |
| Term | an individual number or object in a sequence |
| Term Number | indicates the order or position of a term in a sequence |
| Equation | a mathematical sentence that uses the symbol "=" between two expressions to show that they have the same value |
| Variable | a letter or symbol that represents a quantity that is unknown or that can change |
| Evaluate an Expression | to substitute a number for each variable, then carry out any operations in the expression |
| Fraction | a number that compares a part with a whole |
| Mixed Number | the sum of a whole number and a nonzero fraction |
| Numerator | the top number in a fraction that tells how many parts of the whole to consider |
| Denominator | the bottom number in a fraction that tells how many equal-sized parts the whole is divided into |
| Equivalent Fractions | fractions that name the same part of a whole |
| Lowest Terms | when 1 is the greatest whole number that will evenly divide both the numerator and the denominator |
| Sample | part of a whole set of objects being studied |
| Population | a whole set of objects being studied |
| Sum | the result when two or more numbers are added |
| Difference | the result when two numbers are subtracted |
| Product | the result when two or more numbers are multiplied |
| Quotient | the result when two numbers are divided |
