A number is a count or measurement.

They are really an idea in our minds. We write or talk about numbers using numerals such as "5" or "five". We could also hold up 5 fingers, or tap the table 5 times. These are all different ways of referring to the same number.

There are also different

They are really an idea in our minds. We write or talk about numbers using numerals such as "5" or "five". We could also hold up 5 fingers, or tap the table 5 times. These are all different ways of referring to the same number.

There are also different

*types of numbers*, such as whole numbers (1,2,3) decimals (1.48, 50.5), fractions (1/2, 3/8), and more.