yesterday our teacher was showing us a hair cutting demo. she said to use our comb to measure. (our combs are part ruler )

she goes on say to use the full length of the comb (7 inches btw) and another 3 inches to make. at that moment i blurted out 10

but my teacher said 11. for a moment i felt very embarrassed thinking that i was wrong and could not add something so simple.

and to top it off the whole class heard me -_-" i felt bad a looked down....... but it hit me.... 7 and 3 IS 10

i totally remember rolling my eyes right after it hit me and saying mrs. rivers seven and three is ten. i even used my hands to show her.