What are decimal registers?

A decimal register is like a special kind of counting box that only uses numbers from 0 to 9, just like your fingers!

Imagine you have a toy cash register at a store. Every time someone buys something, the machine adds up how much money they give. A decimal register works in the same way but for bigger numbers, it helps computers and calculators count more easily by grouping digits into sets of ten.

Think of it like this: You have 10 pockets on a bag, and every time you put 10 marbles in one pocket, you move 1 marble to the next bag. That’s how decimal registers work, they help count by tens, just like your fingers can count up to 10.

When you're counting big numbers, it helps to group them into chunks of ten, like in money or time. A decimal register does this automatically, so computers don’t get confused when you add more marbles (or numbers), it just moves the extra ones over to the next bag!