Page 22 - Revised Maths Wisdom Class - 3

20 MATHS

(c) Arranging the number in the place value chart, we get

Th H T O Thus, the face value of 1 is 1 and the
9 1 9 2 place value is 1 hundred or 100.

Expanded Form

The digits of a number can be expanded into its place value form and writt en in the form
of addition statement. This is called as expanded form of the number.

Let us write the expanded form of a number 7945 Th H T O
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7945 = 7 thousands + 9 hundreds + 4 tens + 5 ones 7 9 4 5

= 7000 + 900 + 40 + 5

The opposite of expanded form is Remember!emember!emember!
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short form. Thus, the short form of
6000 + 300 + 20 + 4 = 6324.  When we write a number using digits.

The number is said to be in short form.
Here, the above number 6324 is in the
Let's Try short form.

Example: Write the following in short form:
(a) 8000 + 700 + 50 + 6 (b) 6000 + 300 + 4

(c) 3000 + 50 + 1
Solution: (a) 8000 + 700 + 50 + 6 = 8756 (b) 6000 + 300 + 4 = 6304

(c) 3000 + 50 +1 = 3051

Successor of a Number

The number that comes just aft er a particular number is called its successor. Thus, a

successor of a number is always 1 more than the number.

We add 1 to the number to get its successor.

For example, successor of 1356 is 1357.

The successor of 4563 is 4564.

The successor of 2351 is 2352 and so on.