Exponents and Absolute Values

The video tutorial covers the final unit for 8th graders, focusing on exponents and scientific notation. It begins with a review of exponent basics and introduces new exponent rules. Students learn to write and simplify expressions using exponents, evaluate exponential expressions, and apply the order of operations (PEMDAS) to solve problems involving exponents. The tutorial emphasizes understanding integer rules and the impact of parentheses on negative bases.

What is the main focus of the final unit discussed in the video?

• Geometry and Algebra

• Exponents and Scientific Notation

• Probability and Statistics

• Fractions and Decimals

How do you represent the expression 'negative seven multiplied by itself three times' using exponents?

• 7^2

• (-7)^3

• 7^3

• (-7)^2

What happens to the result of a negative base raised to an even exponent?

• The result is undefined

• The result is zero

• The result is always negative

• The result is always positive

Which operation should be performed first according to PEMDAS?

• Multiplication

• Addition

• Subtraction

• Parentheses

What is the result of 3 to the power of 4?

• 64

• 81

• 16

• 27

If you have the expression 8^2 divided by 2, what should you calculate first?

• 8^2

• Division by 2

• Addition

• Subtraction

What is the result of 2 to the power of 5?

• 16

• 8

• 64

• 32

What is the absolute value of -27?

• 0

• -27

• 27

• 1

What is the result of 6 to the power of 3?

• 108

• 216

• 36

• 18

What is the result of 9 minus 16?

• 7

• -7

• 25

• -25