Evaluating Expressions with Substitutions

Front

What is the result of evaluating the expression 50x when x=5?

Back

250

Front

Evaluate the expression 6b when b=5.

Back

30

Front

Back

4

Front

Calculate 7 + g when g=5.

Back

12

Front

If p=3 and q=2, what is the result of p + 5 - q?

Back

6

Front

Define substitution in the context of evaluating expressions.

Back

Substitution is the process of replacing a variable in an expression with a specific value.

Front

What is the first step in evaluating an expression with substitutions?

Back

Identify the values of the variables in the expression.

Front

How do you evaluate an expression with multiple variables?

Back

Substitute the values of each variable into the expression and then perform the arithmetic operations.

Front

What is the importance of parentheses in evaluating expressions?

Back

Parentheses indicate the order of operations and can change the result of the expression.

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting variables with numbers.