# Problems of the Week with Answers!

May 18, 2017 | Stone Oak

Lower Elementary:

Question: Did you know that goldfish memories last for 180 days and that they can recognize faces? If Mrs. Olson sends her 1st grade class’s goldfish to live with one of her students for the summer, will it recognize her 3 months later when the student brings it back to school?

Solution:  A month is about 30 days. So, 3 months is about 30 + 30 + 30 = 90 days. Since 90 days is less than 180 days, the goldfish will still recognize Mrs. Olson.

Upper Elementary:

Question: Terry has a goldfish that is 3¼ inches long. Margot has a goldfish that is 3.3 inches long. Who has the bigger goldfish?

Solution:  To solve this problem, we can convert 3¼ to a decimal. A fourth is equal to 0.25, so Terry’s fish is 3.25 inches long. That means that Margot’s fish is bigger because 3.3 is more than 3.25.

Middle School:

Question: An aquarium is 24 inches long, 12 inches wide, and 16 inches tall. What is the volume of the aquarium?