Order of Operations and Expressions

The video tutorial explains how to simplify a mathematical expression using the order of operations. It emphasizes the importance of following the correct sequence: simplifying within parentheses first, then performing multiplication and division from left to right, and finally addition and subtraction. The example used is 4 + 5 * (7 - 2), which simplifies to 29. The tutorial also demonstrates verifying the result using a graphing calculator.

What is the first step in simplifying an expression according to the order of operations?

• Simplify within the innermost parentheses

• Multiply and divide from left to right

• Evaluate exponents

• Add and subtract from left to right

Tags

CCSS.5.OA.A.2

CCSS.5.OA.A.1

Why is it incorrect to add 4 + 5 first in the expression 4 + 5 * (7 - 2)?

• Because addition is always done last

• Because it does not follow the order of operations

• Because multiplication is always done first

• Because parentheses should be ignored

Tags

CCSS.6.EE.A.1

What is the result of simplifying the expression inside the parentheses (7 - 2)?

• 6

• 5

• 4

• 3

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

After simplifying the parentheses, what does the expression 4 + 5 * (7 - 2) become?

• 4 + 5 * 5

• 4 + 5 * 7

• 4 * 5 + 5

• 4 + 5 + 5

Tags

CCSS.7.NS.A.3

Which step can be skipped in the order of operations for the expression 4 + 5 * 5?

• Multiplying and dividing

• Evaluating exponents

• Adding and subtracting

• Simplifying within parentheses

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

What operation should be performed next after simplifying the expression to 4 + 5 * 5?

• Multiplication

• Addition

• Division

• Subtraction

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

What is the result of multiplying 5 by 5 in the expression 4 + 5 * 5?

• 35

• 20

• 25

• 30

Tags

CCSS.2.NBT.B.5

What is the final result of the expression 4 + 25?

• 31

• 30

• 29

• 28

Tags

CCSS.6.EE.A.2C

How can you verify the result of an expression using a graphing calculator?

• By manually calculating and comparing

• By entering the expression and checking the output

• By ignoring the calculator's result

• By using a different expression

Tags

CCSS.8.EE.A.2

What is the purpose of using a graphing calculator in this context?

• To ignore the order of operations

• To simplify the expression further

• To verify the manual calculation

• To find a different result

Tags

CCSS.8.EE.A.2