Kidzone.ws Word Problem
  

Mrs. Johnsons's grade two class has turned their classroom into a haunted house for the schools Halloween party.  They have invited students from other classes to come and visit.  In the first hour 61 students came to visit.  In the second hour 30 students went through the haunted house.

Write the math equation: ______________________

How many students visited the haunted house? _______

 
Show your work!