You should know how to make greatest and smallest numbers if individual digits are provided to you. This theory may not have practical implication but this will help you to develop strong concept of numbers

Example 01**Make Greatest and Smallest four digit numbers from the digits 7, 8, 3, 5The digit should not be repeated**

**Greatest Number**

In order to find the greatest number. let us plot a diagram showcasing all the units of a number.

The representation of four digit number will look like this:

**STEP 1:**

Now in order to make the greatest four digit number from the digits provided, we have to place greatest number at the thousandth place (which is 8)

**STEP 2:**

In the hundredth slot, place the second highest digit given (which is 7)

**STEP 3**

Similarly in the tenth slot, place third highest number ( which is 5)

and then in the unit slot, place the smallest number (which is 3)

**Hence the highest number possible from given digits is 8753**

**Smallest Number from the digit 7, 8, 3, 5**

**STEP 1:**

Now in order to make the smallest four digit number from the digits provided, we have to place smallest number at the thousandth place (which is 3)

**STEP 2**

In the hundredth slot, place the second highest digit given (which is 5)

**STEP 3**

Similarly in the tenth slot, place third smallest ( which is 7)

and then in the unit slot, place the greatest number (which is 8)