Real Number Operations Terms 1.2

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to find its value by performing the operations indicated in the expression.

Front

What is the absolute value of a number?

Back

The absolute value of a number is the distance of that number from zero on a number line, regardless of direction.

Front

What are terms of an expression?

Back

Terms of an expression are the parts that are added or subtracted in the expression.

Front

What is the order of operations?

Back

The order of operations is a set of rules that determines the sequence in which multiple operations in an expression should be solved.

Front

What is the Substitution Property of Equality?

Back

The Substitution Property of Equality states that if two values are equal, one can be replaced with the other in an expression.

Front

How do you find the absolute value of -5?

Back

The absolute value of -5 is 5, since it is 5 units away from zero on the number line.

Front

If you have the expression 3 + 4 × 2, what is the correct way to evaluate it?

Back

You should first multiply 4 by 2 to get 8, then add 3 to get 11. (3 + (4 × 2) = 3 + 8 = 11)

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols.

Front

What is an example of a term in an expression?

Back

In the expression 2x + 3, '2x' and '3' are both terms.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to reduce it to its simplest form by combining like terms and performing operations.