Base Ten, also known as the decimal system, is a way of counting and representing numbers using ten digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. Each digit's position in a number determines its value. For example, in the number 345, the 3 represents three hundreds, the 4 represents four tens, and the 5 represents five ones. This system makes it easy to perform calculations and understand the size of numbers.
In Base Ten, when we reach 10, we start a new place value, moving to the next column on the left. This means that after 9, we write 10, which is one ten and zero ones. This pattern