Asquirrel family collected 72 nuts to store for the winter. they spread the nuts out evenly between their 6 favorite locations. sadly, a crow stole half the nuts from one of the locations.

72 divided by six since you have six locations. 6,12,18,24,30,36,42,48,54,60,66,72
Now you have 12 since we counted by 6 twelve times to get to 72 ..this means you have 12 nuts at each location since a crow stole half the nuts at one location. half of twelve is six .
in all you only have 66 nuts left