Exploring Powers and Exponents in 8th Grade Math

This video tutorial covers the fundamental concepts of powers and exponents, explaining how to read and write them. It demonstrates how to express repeated multiplication as powers and provides examples of evaluating expressions using exponents. The tutorial also explores practical applications of exponents in real-world scenarios and includes solving equations with variables.

What is the base in an expression of power?

• The result of the power expression

• The number of times the base is multiplied

• The exponent

• The number that is multiplied by itself

How do you read 3 to the power of 2?

• 3 squared

• 3 doubled

• 3 times 2

• 3 to 2

What is the value of -2 to the power of 4?

• -8

• -16

• 8

• 16

How is 4 to the 4th power calculated using grouping?

• 4 * 4 * 4 * 4 = 256 directly

• 4 * 4 = 16, then 16 * 16 = 256

• 4 + 4 + 4 + 4 = 16

• 4 * 4 * 4 = 64

What is the result of -2 to the 6th power?

• 64

• -64

• -32

• 32

How do you calculate the area of a skateboard deck with dimensions 2/5 * 7 square units?

• 224 square units

• 14 square units

• 2.8 square units

• 35 square units

What is the area of a school basketball court with dimensions 2 * 3 * 5 * 7 square feet?

• 210 square feet

• 4200 square feet

• 105 square feet

• 35 square feet

If a = 3 and b = 5, what is the value of 3^2 + 5^4?

• 152

• 34

• 734

• 625

What is the result of evaluating the expression -4^3 + 9^3?

• -64

• -665

• 665

• 729

If c = -4 and d = 9, what is the result of -4 + 9^3?

• -64

• 729

• 665

• 125