Lateral thinking puzzle

 
cartoon-puzzled
 

2 + 2 = FISH

3 + 3 = EIGHT

7 + 7 = TRIANGLE

How can this be?

The first correct answer explained in an email to Mr Goacher wins 3 housepoints!

Congratulations to Ben Humphries 8E and Reece Oldknow 8E, who have solved the puzzle! 3 housepoints each, and also to Ashton Harris 7B.

The answer of course is to flip one of the numbers and place them next to each other.