Expanded Form of Numbers


 
 
Concept Explanation
 

Expanded Form of Numbers

The expanded form of a number is given by the sum of the place values of its digits in the thousands, hundreds, tens ones places.

A four digit number consists of four digits. For example

1285  is a four digit number where 1 is at thousands place, 2 is at hundreds place, 8 is at tens place and 5 is at ones.

 

The place value of the digits are

Place value of 5 is 5 x 1 = 5

Place value of 8 is 8 x 10 = 80

Place value of 2 is 2 x 100 = 200.

Place value of 1 is 1 x 1000 = 1000.

The expanded form of 1285 is 1000 + 200 + 80 + 5.

 

Similarly the expanded form of 2728 is 2000 + 700 + 20 + 8.

Illustration 1: The expanded form of 4353 in figures is ____________.

A:  4353                         B.  4000 + 300 + 50 + 3               C 435 + 3                    D, None of these

Answer: B

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