Family 
Pet 
Trips Each Day 
Number of Days 
Total Number of Trips to Each House 
McGrath 
Snowball 
2 
4 
2 x 4 = 8 
Dunn 
Fido 
2 
3 
2 x 3 = 6 
Carbone 
Chow 
3 
6 
3 x 6 = 18 
Quinn 
Squeaky 
? 
? 
To find the number of trips to the Quinns' house, find the sum of the trips to the other houses:
8 + 6 + 18 = 32 Subtract that number from the total number of trips: 36 – 32 = 4 Lyle made 4 trips to the Quinns' house. 
