Page 11 - Start Up Mathematics_6

Place Value
The place value of a digit in a number is its face value multiplied by its position value in the
place value chart. The place value of a digit depends on its position in the number. For example,
the place value of ‘5’ in 6,285 is 5 × 1 = 5 and 5,41,008 is 5 × 1,00,000 = 5,00,000.

The face value as well as place value of the digit 0 is always 0, irrespective of its position in the number.

International Place Value Chart
BILLIONS MILLIONS THOUSANDS ONES

Hundred Billion Ten Billion Billion Hundred Million Ten Million Million Hundred Thousand Ten Thousand Thousand Hundred Ten One

100,000,000,000 10,000,000,000 1,000,000,000 100,000,000 10,000,000 1,000,000 100,000 10,000

1,000
100
10
1

Let’s learn to write numbers according to international place value chart and their corresponding
number names.

Writing Numbers in International Place Value Chart

BILLIONS MILLIONS THOUSANDS ONES

NUMBER Hundred Thousand
Ten Billion Billion Hundred Million Ten Million Million Ten Thousand Thousand Hundred Ten One

34,561,675,891 3 4 5 6 1 6 7 5 8 9 1
46,738,190,325 4 6 7 3 8 1 9 0 3 2 5
6,494,383,501 6 4 9 4 3 8 3 5 0 1

Number Names of the Given Numbers

Number Number name
Thirty-four billion five hundred sixty-one million six hundred seventy-five
34,561,675,891
thousand eight hundred ninety-one
contd...
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