Question

1) Find the difference between the greatest 4-digit number and the smallest 4 - digit number.​

Answer 1

Answer:

So the largest 4 digit number is = 9999. Now we have to calculate the sum and difference of these two numbers. Therefore, the sum of the largest and smallest four digit numbers is 10999. Therefore, the difference of the largest and smallest four digit numbers is 8999.

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Answer 2

Greatest 4 digit number - 9,999

Smallest 4 digit number - 1,000

So, the difference between 9,999 and 1,000 is

8,999