Decimal
It is part of a number. It also can be a fraction. It is NOT a whole number.
Value
How much a number is worth.
Place Value
Where a digit is, changes what it is worth.
Ones
Counting numbers from 0 to 9; a one digit number
Tens
Counting numbers in bundles of 10 all the way up to 90; a two digit number
Examples: 10, 20, 30, 40, 50, 60...
Hundreds
Counting numbers in bundles of 100 all the way up to 900; a three digit number
Examples: 100, 200, 300, 400, 500, 600...
Thousands
Counting numbers in bundles of 1,000 all the way up to 9,000; a four digit number
Examples: 1,000, 2,000, 3,000, 4,000, 5,000, 6,000...
Ten Thousands
Counting numbers in bundles of 10,000 all the way up to 90,000; a five digit number
Examples: 10,000, 20,000, 30,000, 40,000, 50,000, 60,000...
Hundred Thousands
Counting numbers in bundles of 100,000 all the way up to 900,000; a six digit number
Examples: 100,000, 200,000, 300,000, 400,000, 500,000, 600,000...
Millions
Counting numbers in bundles of 1,000,000 all the way up to 9,000,000; a seven digit number
Examples: 1,000,000, 2,000,000, 3,000,000, 4,000,000, 5,000,000, 6,000,000...
Ordering Number
Listing numbers from least to greatest (smallest to biggest) or from greatest to least (biggest to smallest)
Example: 1, 2, 4, 10 or 10, 4, 2, 1
Standard Form
Numbers written (large or small) using the place value system
Examples: 54, 1,376, 689, 701,234, 3
Word Form
Writing numbers as words
Examples: Three, Forty-four, One hundred eleven
Expanded Form
A way to write numbers by showing the value of each number
Example: 6,543 = 6,000 + 500 + 40 + 3