Define) Base 10 Number System

Define) Expanded Form
Define) Place Value

1) Base 10 Number System: The base 10, or decimal, number system is a system in which numbers are represented using 10 different digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. It is the most commonly used number system in everyday life and consists of place values where each digit's value is multiplied by powers of 10.

2) Expanded Form: Expanded form is a way of representing a number as the sum of its place values. In this form, each digit within a number is written separately, and then the corresponding place value is indicated. For example, the number 458 in expanded form would be written as 400 + 50 + 8.

3) Place Value: Place value refers to the value that a digit holds in a number based on its position or place within that number. In the base 10 number system, each digit's place value is determined by its distance from the decimal point. The rightmost digit is in the ones place, the second digit from the right is in the tens place, the third digit from the right is in the hundreds place, and so on. Place value is important for understanding the magnitude and relative value of each digit within a number.