SME
Grade 3 Science · Problem type
Fur colors in a litter
Use this to graph a litter’s fur colors and see the variation.
Chart
Brown puppies
4
Black puppies
2
Spotted puppies
3
Puppies in the litter: 9
This is an example. Type your own values to start a new problem.
Brown puppies
example
Black puppies
example
Spotted puppies
example
Puppies in the litter
calculated
Formulas
4 + 2 + 3 = 9
Brown puppies + black puppies + spotted puppies = puppies in the litter
Assumptions
•
A trait is something about a living thing you can observe, like fur color.
•
Young inherit traits from their parents.
•
Puppies from the same parents are not all the same.
Step-by-step
WE KNOW
Brown puppies: 4
Black puppies: 2
Spotted puppies: 3
FIND
puppies in the litter
Step 1 · Find puppies in the litter
4 + 2 + 3 = ?
Brown puppies + black puppies + spotted puppies = puppies in the litter
Add up all the fur colors.
4 + 2 = 6
6 + 3 = 9
Puppies in the litter = 9
Check
Put the numbers back in. Both sides should match.
4 + 2 + 3 = 9 ✓
Topic check
See what you know: 5 questions on this topic
New questions each time. Pass to mark it complete.