Conventions other than layout:
− Numbers up until 10 are written in full (e.g. The new model is expected in three
months), unless they refer to dates (e.g. The school term starts on September 2) or
exact times (e.g. She had a 7:00 P.M. deadline, but On weekdays she gets up at
seven).
− Double digit numbers can be written in full, but are also allowed to be written as a
numeral (e.g. I am a seventeen-year-old girl/boy or I am a 17-year-old girl/boy).