Louisa walked for 15 minutes from her house
to Marys house. She spent 25 minutes at
Marys house. She walked 10 minutes to the
store. She bought groceries at the store. She
walked 10 more minutes to get home. What
one additional piece of information is needed
to find how many minutes Louisa was gone
from her house
What time Louisa left home
How fast Louisa walked
How far Louisa lives from Mary
How long Louisa was at the store
