OK - it's going to edit this one too.... But if you figured out the blank in my previous post - you can figure this one out too....
A little boy was doing his math homework. He said to himself, "Two
plus five, that son of a ***** is seven."
"Three plus six, that son of a ***** is nine...." His mother heard
what he was saying and gasped, "What are you doing?" The little boy
answered, "I'm doing my math homework, Mom." "And this is how your
teacher taught you to do it?" the mother asked. "Yes," he answered.
Infuriated, the mother asked the teacher the next day, "What are you
teaching my son in math?" The teacher replied, "Right now, we are
learning addition." The mother asked, "And are you teaching them to say
two plus two, that son of a ***** is four?"
After the teacher stopped laughing, she answered, "What I taught them
was, two plus two, THE SUM OF WHICH, is four."
Virgil

TFD