A dozen = 12. The word comes from the old French word douzaine which means "a group of twelve".
A dozen dozen is twelve dozen or twelve twelves or 144. This is also known as a gross.
Its a misquotation of "Ninteen to the dozen"
12
dozen is twelve
A dozen is twelve. 9 x 12 = 108
A expression in maths is a collection of terms without an equality sign.
It means six lots of one dozen.
"tenth"
What symbol
division
circle
direction