Exploring Adding and Subtracting Rational Expressions

This video tutorial covers numerical expressions and how to solve them using the order of operations. It introduces the concept of numerical expressions, provides examples, and explains the order of operations using the acronym 'gymnast'. The video also discusses different types of grouping symbols and demonstrates solving various numerical expressions through example problems, including advanced examples with detailed solutions.

Which of the following is a numerical expression?

• 5 + 4 * 7

• a / b

• 5 + x

• x - 3

What does the 'G' in GEMDAS stand for?

• Geometry

• Grouping symbols

• Greatest common divisor

• Graphing

In the order of operations, which comes first?

• Subtraction

• Addition

• Exponents

• Multiplication

Which of the following is a type of grouping symbol?

• Semicolon

• Colon

• Parentheses

• Comma

What is the result of 19 - 3 * 4?

• 22

• 12

• 16

• 7

How do you simplify 24 + 16 / 8?

• 40

• 26

• 5

• 32

What is 3 squared times (37 - 8)?

• 87

• 29

• 81

• 261

What is the value of 5 * (16 - 3 squared)?

• 30

• 25

• 35

• 45

Simplify 56 / 8 * 2 squared + 1.

• 35

• 28

• 25

• 30

What is the result of 6 cubed divided by (16 - 7)?

• 21

• 24

• 27

• 18