Which equation has the variable, or missing number, in the correct place to match the given situation?
The Lerch family drove a total of 482 miles, starting on Friday and ending on Sunday. They drove 138 miles on Friday and 225 miles on Saturday. How many miles did they drive on Sunday?
To find the number of miles they drove on Sunday, we need to subtract the total distance they drove on Friday and Saturday from the total distance they drove.
The correct equation is: 482 - 138 - 225 = __.
We need to subtract 138 and 225 from 482 to find the missing number.