Evaluate - to find the value of an expression., Grouping symbols - a symbol such as parentheses ( ), brackets [ ], or braces { } used to group parts of an expression that should be evaluated before others., Numerical Expression - a statement that includes numbers and operations., Sum - the answer to an addition problem., Difference - the answer to subtraction problems., Product - the answer to multiplication problems., Quotient - the answer to division problems., Order of Operations - an order of specific steps that mathematicians agreed upon to simplify expressions with more than one operation.,

Writing and Interpreting Numerical Expressions

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