Decimal mark

A decimal mark is a tiny dot or a comma that we use to separate the whole number and its parts that are smaller than the whole number. For example, if we have the number 5.5, we can see that there is a decimal mark between the 5 and the 5 after the dot. It means that the number is not just 5 but has a little bit more value. Decimal marks help us be more precise with our numbers and understand what is the exact value of a number. It's like dividing a pizza into smaller pieces to share with our friends. Each slice has a value, and the decimal mark helps us know how much each slice is worth.