Matt's entire family was going to spend the week at the lake house for vacation.  Matt's family included his mom, dad, his older brother and his wife and their 4 kids.  His Uncle Joe and his wife were also coming and would bring their 3 kids.  The house only sleeps 4 people.  Everyone else would sleep 2 to a tent outside.  How many tents would they need?
We need to add Matt's entire family together so 1+2+2+4+2+3 = <<1+2+2+4+2+3=14>>14
Only 4 people could sleep in the house so 14-4 = <<14-4=10>>10 people would sleep in a tent
Each tent sleeps 2 people and there were 10 people left so 10/2 = <<10/2=5>>5 tents were needed
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