How can we find the value of a multiple step numerical expression? For example, what would the value of this numerical expression be? 5 + (3 x 2)- 4 2 _ 8

In this lesson you will learn how to find the value of a numerical expression which contains whole- number exponents by using the Order of Operations.

Let’s Review Numerical expressions are mathematical phrases that have numbers and operations but do not contain an equal or inequality sign. 4 x ÷ 3

Let’s Review Exponents show how many times we use the base number as a factor. For instance: 5 2 is the same as 5 x 5 or 25.

A Common Mistake Ignoring the Order of Operations and just performing operations as they appear left to right ÷ 4 ≠ 6

Let’s Review Core Lesson Order of Operations 1 st P Parentheses 2 nd E Exponents 3 rd M Multiply or D Divide from left to right 4 th A Add or S Subtract from left to right

Let’s Review Core Lesson 5 + (3 x 2)- 4 2 ÷ ÷ ÷

Let’s Review Core Lesson A good way to remember the order of the Order of Operations: P lease E xcuse M y D ear A unt S ally

In this lesson you have learned how to evaluate multiple step numerical expressions by following the Order of Operations.

Let’s Review Guided Practice Find the value of: 30 – (2 x 5) + 6

Let’s Review Extension Activities Use the Order of Operations to find the value of: 5 3 – (8-3)

Let’s Review Extension Activities Write the expression and find it’s value by following the Order of Operations Eight less than two cubed, plus twenty divided by five

Let’s Review Quick Quiz Find the value of 4 3 _ (7 + 5) Find the value of _ 3 2