Keywords: sum
Sign Definition
As a Noun
                                            1. The number you get when you add several numbers together. English = sum.
                                          
                                          
                                        Note
                                            1. Used by some signers, especially teachers of the deaf, their students and interpreters, to distinguish 'sum' as a mathematical operation from more general types of summation. However, other signs found under the keyword 'sum' are also commonly used with this meaning.