3.3.1 Multiplication and Division Notation

The multiplication symbol was first used by an English mathematician William Oughtred (1574–1660) in 1631. Another symbol for multiplication is asterisk operator, although this is generally only used when writing math for computer programmes.

[ The division symbol (division) was first used by Johann Rahn (1622−676) in a book published in German in 1659. ] For division, a range of notations are used: 72 division eight, or 72 divided by eight, or 72/8 or eight times 72 all mean “72 divided by 8.”

3.3 Multiplication and Division

3.3.2 Checking Your Math