Grade 6 Exponent Problems: Evaluate & Solve Equations

A plant doubles in height every week. If it is 2 cm tall now, how tall will it be in 4 weeks? Evaluate the expression 2^4.

• 32 cm

• 8 cm

• 16 cm

• 4 cm

A computer's memory capacity is 2^5 gigabytes. How many gigabytes of memory does the computer have?

• 16 gigabytes

• 64 gigabytes

• 8 gigabytes

• 32 gigabytes

If a bacteria culture doubles every hour and starts with 3 bacteria, how many bacteria will there be after 3 hours? Solve the equation 3 * 2^x = 24.

• 12

• 24

• 18

• 30

A savings account earns interest at a rate of 2^3% per year. What is the interest rate?

• 4%

• 10%

• 8%

• 6%

A video game character's health points double every level. If the character starts with 50 health points, how many health points will they have after reaching level 5? Evaluate 50 * 2^5.

• 1600

• 2000

• 400

• 800

A tree grows 3^2 inches each year. How much will it grow in 3 years? Solve for the total growth.

• 27 inches

• 9 inches

• 12 inches

• 15 inches

If a certain species of fish triples in population every year, starting with 5 fish, how many fish will there be after 2 years? Solve the equation 5 * 3^x = 45.

• 15

• 30

• 60

• 45

A cell phone plan costs $2^4 per month. How much does the plan cost?

• 8

• 16

• 12

• 20

A book's pages are printed in 2^6 copies. How many copies are printed?

• 256

• 32

• 128

• 64

If a car's value depreciates by half each year, starting at $32,000, what will its value be after 3 years? Evaluate the expression 32000 * (1/2)^3.

• 4000

• 2000

• 8000

• 16000