Place value is a fundamental concept in mathematics that describes the value of each digit in a number based on its position. It is important for children to understand that while a digit may have the same value, its place value changes depending on its position in the number. For example, in the number 356, the digit 5 has a place value of 50 because it is in the tens place, while the digit 6 has a place value of 6 because it is in the ones place.
Children are often taught place value through a chart that shows the different place values, such as ones, tens, hundreds, thousands, and so on. Manipulatives like base-10 blocks, snap cubes, and unifix cubes can also be used to help children visualize place value.
Understanding place value is important because it forms the basis of our entire number system and is necessary for more advanced mathematical concepts like regrouping and multiplication.