What is Decimal (base-10) system?

The decimal system is like having 10 best friends who help you count everything around you.

Imagine you have a bag of marbles, and every time you count to 10, you put them in a little box. Then you start counting again with the next set of marbles, this is how the decimal system works! It uses numbers from 0 to 9, and once you reach 10, it rolls over to the next place.

In the decimal system, each position in a number has a special job. For example:

• The rightmost digit is the ones place, it counts how many marbles you have.
• If you have more than 9 marbles, you move to the tens place, like moving to the next box.

So if you have 23 marbles, that means you have 2 tens (like two full boxes) and 3 ones (three marbles in your hand).

We use the decimal system every day, when we count toys, candies, or even steps! It’s like having a team of 10 friends who help you keep track of everything, making counting faster and easier.