Three

How to type it

Left middle finger. Introduced in Lesson 20: Numbers: 1 to 5.

Common uses

• Three marks third place and a triangle's three sides.
• Prices and ratings such as 3 stars use this digit.

Less common uses

• Three is the smallest odd prime number.
• March 14, written 3/14 in the US, is called Pi Day because pi is about 3.14.
• Ordinary space has three dimensions.