Reading and writing numbers — lesson. Mathematics CBSE, Class 6.

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Numbers can be expressed in three forms. They are as follows:

Standard form: The standard form is nothing but the mathematical form of the number.

Example:

The number

$425$ - Standard form.

Similarly,

$8756, 369824, 587469123$ are also the standard forms of numbers

Expanded form: Split a number according to their place value and expand it to show the value of each digit is called the expanded form.

Example:

For the same set of numbers

$425, 8756, 369824, 587469123$ , the expanded form will be as follows:

Written form: This can be done by directly converting the expanded form to words.

Example:

For the same set of numbers

$425, 8756, 369824, 587469123$ , all the three forms are listed below.

Standard form	Expanded form	Written form (Indian system)	Written form (International system)
$425$	$400+20+5$	Four Hundred Twenty-Five	Four Hundred Twenty-Five
$8756$	$8000+700+50+6$	Eight Thousand Seven Hundred Fifty-Six	Eight Thousand Seven Hundred Fifty-Six
$369024$	$300000+60000+9000+20+4$	Three Lakh Sixty Nine Thousand Twenty Four	Three Hundred Sixty Nine Thousand Twenty Four
$587469123$	$500000000+80000000+7000000+$ $400000+60000+9000+100+20+3$	Fifty-Eight Crore Seventy Four Lakh Sixty Nine Thousand One Hundred Twenty Three	Five Hundred Eight Seven Million Four Sixty Nine Thousand One Hundred Twenty Three

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9. Reading and writing numbers