Evaluating Expressions through Substitution Techniques

What does it mean when there is no symbol between two variables in an expression?

• Subtraction

• Addition

• Multiplication

• Division

If a = 3 and b = 2, what is the value of the expression ab?

• 8

• 32

• 6

• 5

In the expression a - ab, if a = 8 and b = 0.5, what is the result?

• 4

• 8

• 6

• 2

What is the value of the expression abc if a = 6, b = 4, and c = 2?

• 48

• 52

• 24

• 32

Evaluate the expression ab - c if a = 6, b = 4, and c = 2.

• 20

• 18

• 22

• 24

For the expression ab - ac, if a = 6, b = 4, and c = 2, what is the result?

• 16

• 12

• 14

• 10

In the expression a / c + b, if a = 6, c = 2, and b = 4, what is the value?

• 8

• 7

• 6

• 5

What is the result of the expression 2cb if c = 2 and b = 4?

• 12

• 14

• 16

• 18

Evaluate the expression c * b^2 if c = 2 and b = 4.

• 28

• 36

• 32

• 24

What should you remember to do first when evaluating expressions with exponents?

• Addition

• Subtraction

• Exponents

• Multiplication