Question: Can you explain how to solve this math problem: There are 100 jellybeans in a glass jar.  Mrs. Copper’s kindergarten class normally has 24 kids, but 2 children called in sick and stayed home that day. The remaining children who attended school eat 3 jellybeans each. How many jellybeans are still left in the jar?
Answer: 
With the sick children who stayed home, there are this many kindergarten students in the class: 24 - 2 = 22 kids.
This many jellybeans are eaten: 22 x 3 = 66 jellybeans.
This many jellybeans are still left in the jar: 100 - 66 = 34 jellybeans.