Maths for donkeys

My son did his maths homework this morning. Trouble was he rushed the last sum as we were getting ready for church. This gave me a chuckle so I had to Blip it. Getting the d's & b's mixed up is quite common amongst dboys during the early stages of writing. As are 6's & 9's.

He passed his maths though!!!!

I'm not sure whether I should tell him yet. What do you reckon?

;-p