Evaluating Expressions with Replacement Values

What is the first step in evaluating expressions with given replacement values?

• Simplify the expression

• Multiply all the numbers

• Replace variables with numeric values

• Add all the numbers

When substituting variables, what should always be used?

• Colons

• Parentheses

• Brackets

• Commas

What is the value of B in the first example?

• 5

• 4

• 2

• 3

What is the absolute value of 4?

• 4

• -4

• 0

• 8

What is the result of 4 divided by -2?

• -2

• 2

• 0

• -4

What is the final result of the first example?

• -9

• -11

• -13

• -15

What is the value of B in the second example?

• 4

• 3

• 2

• 5

What is the square root of 4?

• 1

• 2

• 3

• 4

What is the result of 2 times -2 times 3?

• 12

• 6

• -12

• -6

What is the final result of the second example?

• -6

• -12

• -8

• -10