Impact of Place Value
Consider the 4-digit number 3795. When we exchange the digits of two places, the number either becomes larger or smaller. For example, the given number is 3795. If the digits 9 and 5 are exchanged, then the number is 3759. This number is less than the given number. It makes a great impact in the situations like handling currencies.
● In the same way, make different 4-digit numbers by exchanging the digits and check every time whether the number made is small or big.
9876 : Exchanging first two digits the number is 8976. It is smaller number
6789 : Exchanging the middle two numbers, the number is 6879. It is bigger number
9965 : Exchanging last two numbers, the number is 9956. It is smaller number.
9537 : Exchanging last two numbers, the number is 9573. It is bigger number.
● Pedometer used in walking practice contains 5 digit number. What could be the largest measure?
Largest measure is 99,999