Vocabulary
A common way to write a number using digits.
Standard Form
Write the value of 4 in...
54,625,001
4,000,000
54,695
Fifty-four thousand, six hundred ninety five
Five thousand, one hundred sixteen
5,116
3,450
3 x 1,000 + 4 x 100 + 5 x 10
A way of writing a number as the sum of the values of its digits.
Expanded form
Write the value of 5 in the number....
745,862
5,000
6,450,500
Six million, four hundred fifty thousand, five hundred
Eighty-three thousand, four hundred seventy-two
83,472
78,125
7 x 10,000 + 8 x 1,000 + 1 x 100 + 2 x 10 + 5 x 1
Each group of three digits on a place value chart.
Period
Name the place of 1 in the number...
251,890
thousands
952,121
Nine hundred fifty-two thousand, one hundred twenty one
Six hundred forty-nine thousand, eight hundred thirty-three
649,833
651,920
6 x 100,000 + 5 x 10,000 + 1 x 1,000 + 9 x 100+ 2 x 10
A number that has a digit in the tenths place, hundredths place, and/or beyond.
Decimal
Name the place of the 6 in the number...
45,601
hundreds
71,822,355
Seventy one million, eight hundred twenty two thousand, three hundred fifty five
Two million, five hundred seventy-one thousand, five hundred
2,571,500
3,412,741
3 x 1,000,000 + 4 x 100,000 + 1 x 10,000 + 2 x 1,000 + 7 x 100 + 4 x 10 + 1 x 1
A chart showing the value of each number in a multi-digit whole number.
Place Value Chart
Name the place of the 9 in the number...
12,062,490
tens
99,999,999
Ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine
Thirty three million, one hundred sixty-six thousand, one
33,166,001
77,400,604
7 x 10,000,000 + 7 x 1,000,000 + 4 x 100,000 + 6 x 100 + 4 x 1