Exponent Rules and Basic Fractions

The video tutorial covers various math problems, including calculating percentage decrease, understanding negative exponents, subtracting fractions, calculating sales commission, estimating fractions as percentages, and applying exponent rules. Each problem is explained step-by-step, demonstrating the mathematical concepts and calculations involved.

What is the percentage decrease when a price drops from $20 to $17?

• 25%

• 20%

• 15%

• 10%

Tags

CCSS.7.EE.B.3

If a shirt originally costs $20 and is now $17, what is the dollar amount of the decrease?

• $5

• $4

• $3

• $2

Tags

CCSS.8.EE.A.1

What is 2 to the power of negative 4 equivalent to?

• 1/64

• 1/8

• 1/16

• 1/32

Tags

CCSS.8.EE.A.1

How do you express 2 to the power of -4 as a fraction?

• 1/4

• 1/8

• 1/16

• 1/32

Tags

CCSS.7.NS.A.1C

What is the result of 3/4 minus 1/6?

• 11/12

• 7/12

• 5/12

• 1/2

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

To subtract 1/6 from 3/4, what common denominator should be used?

• 12

• 6

• 10

• 8

Tags

CCSS.6.RP.A.3C

A salesperson earns a 2% commission on a $300 sale. How much is the commission?

• $3

• $5

• $6

• $10

Tags

CCSS.6.RP.A.3C

If a salesperson makes 2% commission, how much do they earn on a $300 sale?

• $7

• $5

• $6

• $4

Tags

CCSS.8.EE.A.1

What is the simplified result of 2^6 * 2^4 / 2^5?

• 2^3

• 2^5

• 2^6

• 2^4

Tags

CCSS.8.EE.A.1

Using exponent rules, what is 2^6 multiplied by 2^4 divided by 2^5?

• 64

• 32

• 16

• 128

Tags

CCSS.8.EE.A.1