Place Value – Whole Numbers - Denilya.net

Place Value – Whole Numbers – KeyDigits:A number is made of one or more digits. The number 683, forexample, is made of the digits 6, 8 and 3.How many digits do the following numbers have?23 __2__ 5 __1__ 4,985 __4__ 853 __3__ 253,947 __6__Place Value:Place value is the basis of our entire number system. A place valuesystem is one in which the position of a digit in a number determinesits value. In the standard system, called base ten, each placerepresents ten times the value of the place to its right. You can thinkof this as making groups of ten of the smaller unit and combining themto make a new unit.Representing place value with cubes:

• Color the digit in the Thousands Place Purple.• Color the digit in the Ten Thousands Place Yellow.• Color the digit in the Ones Place Blue.• Color the digit in the Millions Place Orange.• Color the digit in the Tens Place Grey.• Color the digit in the Hundred Thousands Place Red.• Color the digit in the Hundreds Place Green.Writing NumbersStandard form: Writing numbers using digits.____________________example: 2,345Word form: Writing numbers using words.______________________example: two thousand three hundred forty-fiveExpanded Form: A way to write numbers by adding the value of their digits.example: 2,000 + 300 + 40 + 5