Evaluating Numerical Expressions with Exponents

This video tutorial introduces numerical expressions and whole number exponents. It explains the concept of bases and exponents, demonstrating how exponents represent repeated multiplication. The tutorial includes examples and a word problem involving salary calculation using exponents, illustrating practical applications of the concept.

What is a numerical expression?

• A combination of numbers and letters.

• A combination of numbers and operators.

• A combination of numbers and variables.

• A combination of variables and operators.

Which of the following is a whole number?

• 2.5

• 3

• 1/2

• 0.5

What is the base in the expression 7^2?

• 49

• 2

• 14

• 7

What is the value of any number raised to the power of 0?

• The number itself

• 0

• 1

• Undefined

What is 5 to the third power?

• 25

• 125

• 15

• 75

How do you express 3 times 3 times 3 times 3 using exponents?

• 3^3

• 4^4

• 3^4

• 4^3

What is 2 to the fifth power?

• 64

• 128

• 16

• 32

If Tad's salary doubles every day starting from $1, how much does he earn on the 10th day?

• $256

• $512

• $1024

• $2048

What is the total amount Tad earns over 10 days?

• $512

• $4095

• $1023

• $2047

How do exponents help solve Tad's salary problem?

• By using the power of 3 for each day minus 1.

• By multiplying the salaries directly.

• By using the power of 2 for each day minus 1.

• By adding the salaries directly.