Exponential Growth & Decay: Fun Math Challenges for 8th Graders

Quiz
•
English, Mathematics
•
8th Grade
•
Easy
Anthony Clark
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A population of rabbits doubles every year. If there are 50 rabbits now, how many will there be in 3 years?
800
100
400
200
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A bacteria culture starts with 200 bacteria and grows at a rate of 25% per hour. How many bacteria will there be after 4 hours?
600
400
350
488
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A car's value decreases by 15% each year. If the car is currently worth $20,000, what will its value be after 2 years?
$12,000
$14,450
$16,000
$17,000
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A tree grows at a rate of 10% per year. If the tree is currently 5 feet tall, how tall will it be in 5 years?
8.05 feet
7.25 feet
10 feet
6.5 feet
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A bank account earns 5% interest compounded annually. If you deposit $1,000, how much will you have in the account after 3 years?
1100.50
1200.00
1305.25
1157.63
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A certain species of fish in a lake decreases by 30% each year due to pollution. If there are currently 1,000 fish, how many will be left after 2 years?
700
800
600
490
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A town's population is 10,000 and is expected to grow by 4% each year. What will the population be in 5 years?
10500
12167
13000
11500
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