Word Problem

Chad's favourite things during Halloween are Jack-O-Lanterns.  On Halloween night Chad went for a walk down his street.  He found 9 houses with Jack-O-Lanterns on his side of the street and 7 houses with Jack-O-Lanterns on the other side of the street.

Hint:  If it helps, draw the Jack-O-Lanterns in the space below.

Write the math equation: ______________________

How many houses had Jack-O-Lanterns?  _______

Show your work!