Problem: After eating a hearty meal they went to see the Buckingham palace. There, Rachel learned that 705 visitors came to the Buckingham palace that day. If there were 191 visitors the previous day and 457 visitors the day before that, how many more visitors visited the Buckingham palace on that day than on the previous 245 days?
Solution: ( 705.0 - ( 191.0 + 457.0 ) ) = 57