Did Mary have a little lamb or Rebus #107

If your new to Rebuses, you can read how to solve a Rebus here (link opens in a new window).
Do you need a little help? Click to reveal a clue to the above Rebus.
A clue to help decipher the hidden meaning – You have a sum and the word “Mary” to make One word.


Do you think you have got it? Click to view the answer.
You have a sum of the words “Mary”, to give the answer: Summary