Our National Mourning Day Tradition

Eddie is an 8 year old indigenous boy who has a unique yearly tradition. Eddie's family does not celebrate Thanksgiving but instead they celebrate National Day of Mourning. Every year Eddie helps his parents make lasagna to feed the homeless and less fortunate. 

One year Eddie and his family made 30 slices of lasagna to give out to the homeless. Eddie made lots of plates with one slice of lasagna and helped load them up into his dads car.  

30-4=?

They first drove around their neighborhood looking for people who might have not been able to make it to the homeless shelter for their Thanksgiving meal. Eddie found a group of 4 people sitting on the floor. He gave each one of them a slice of lasagna. How many slices does Eddie have left?

Eddie only has 26 slices of lasagna left.

Eddie and his family then went to a local park near his house. They encountered 4 different groups of people at this park. 

26-4=?

The first group at the park was made up of 4 people. Eddie handed each person a slice of lasagna. How many slices of lasagna does Eddie have left?

Eddie only has 22 slices of lasagna left.

22-3=?

The second group had 3 people. They were sitting near a bench at the park enjoying the fall weather. Eddie gave each person a slice of lasagna. How many slices of lasagna does Eddie have left?

Eddie only has 19 slices of lasagna left. 

19-7=?

The third group at the park had 5 people. 2 of the people were very hungry so Eddie gave both of them 2 slices. How many slices of lasagna does Eddie have left?