duodecimal

"Humans share common ancestors with other apes."

"In math class, the teacher explained the notation for writing exponents, like 2 raised to the power of 3, using a small number above and to the right. "

"My sister is learning to play the guitar. "

"The recipe called for 2.5 cups of flour; the decimal 2.5 represents two whole cups and five-tenths of a cup. "

"He was the first to complete the course."

"The complicated instructions for the new software program confused many of the employees. "

"Fractions would be a little easier if we counted by twelves."

"There are eight planets in the solar system."

"Zero, one, −1, 2.5, and pi are all numbers."

"The construction crew's working on the new school building is going smoothly. "

"Words cannot express the love I feel for him."

"A short/long time since"