Evaluating Numerical Expressions

Which of these illustrates the zero product property?

• 4 x (5 x 6) = (4 x 5) x 6
• 6 (9 + 1) = (6 x 9) + (6 x 1)
• 4 x (56) = (45) x 6
• 5 x 0 = 0

3(w + 4) = 3w + 12 is an example of...

• Inverse Property
• Distributive Property
• Multiplicative Inverse
• Associative Property

Rewrite (9 x 6) x 5 using the associative property.

• 270
• 9 x 30
• 9 x (6 x 5)
• 5 x 9 + 5 x 6

What is the first step to evaluate an expression?

• Substitute the variable with parentheses

• Combine numbers

• Multiply

• Add

Evaluate 2a + 1 when a =3

• 6

• 7

• 33

• 1

Evaluate 20 + 2b when b = 5

• 30

• 20

• 27

• 5

(5 + 3) + 2 = 5 + (3 + 2)

• Commutative  Addition
• Commutative Multiplication
• Associative Addition
• Associative Multiplication

PEMDAS means:

• Parentheses, Exponents, Multiplication, Division, Addition, Subtraction

• Parentheses, Exponents, Math, Division, Addition, Subtraction

• Parentheses, Evaluate, Multiplication, Division, Addition, Subtraction

• Periods, Exponents, Multiplication, Division, Addends, Subtraction

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

In 3x² + 5 the x is the....

• exponent

• variable

• coefficient

• constant

In 3x² + 5 the 3 is the....

• coefficient

• constant

• variable