The first place value is the ones place. This is the rightmost digit in a number and represents the quantity of units. For example, in the number 123, the “3” is in the ones place and represents three units.

The second place value is the tens place. This place represents the quantity of 10s. For example, in the number 123, the “2” is in the tens place and represents two sets of ten, or twenty.

The third place value is the hundreds place. This place represents the quantity of 100s. For example, in the number 123, the “1” is in the hundreds place and represents one set of one hundred, or one hundred.

The fourth place value is the thousands place. This place represents the quantity of 1,000s. For example, in the number 1,234, the “1” is in the thousands place and represents one set of one thousand, or one thousand.

As we move from right to left in a number, each place value is ten times greater than the one to its right. For example, the tens place is ten times greater than the ones place, the hundreds place is ten times greater than the tens place, and so on.

Understanding place value is important for performing operations like addition, subtraction, multiplication, and division. It helps us to understand the quantity and value of each digit in a number, and how to manipulate those digits to solve problems.