Evaluating Expressions with Mr. J

What does it mean to evaluate an expression?

• To determine if the expression is true or false

• To find the value of the expression

• To graph the expression on a coordinate plane

• To simplify the expression as much as possible

Tags

CCSS.6.EE.A.2C

When x equals 5, what is the value of the expression 8x?

• 13

• 45

• 8

• 40

Tags

CCSS.6.EE.A.2C

Why is it important to use a symbol to represent multiplication when substituting a number for a variable?

• To make it easier to solve

• To avoid confusion with addition

• To differentiate it from a two-digit number

• Because it's a mathematical rule

Tags

CCSS.6.EE.A.2C

What is the correct order of operations?

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

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

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

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

Tags

CCSS.7.EE.B.3

In the expression 7B - A, if B equals 9 and A equals 10, what operation do you perform first?

• Multiplication

• Division

• Addition

• Subtraction

Tags

CCSS.6.EE.A.2C

What is the value of the expression 7b - a when a = 10 and b = 9?

• 53

• 63

• -53

• 16

Tags

CCSS.6.EE.A.2C

What is the value of the expression a + 18 / b when a = 10 and b = 9?

• 28

• 12

• 10

• 2

Tags

CCSS.6.EE.A.2C

After evaluating the expression with A = 10 and B = 9, what is the final step in example 4?

• Divide 18 by B

• Subtract B from A

• Add 10 to 2

• Multiply A by B

Tags

CCSS.6.EE.A.2C

• 7

• 10

• -7

• 13

Tags

CCSS.6.EE.A.2C

Evaluate expression if a=3 and b=4

4b-5a

• 2

• 1

• -8

• 8

Tags

CCSS.6.EE.A.2C