Question

Write the following numbers.
(a) The largest 7-digit number (b) The smallest 8-digit number
(c) The smallest 7-digit number having 3 different digits
(d) The difference between the largest 8-digit number and the smallest 7-digit number
7​

Answer 1

Answer:

Step-by-step explanation:

(a) 9999999

(b)10000000

(c)1000023

(d)98999999

Answer 2

${ \large{ \sf{ \purple{ Largest \: 7 \: digit \: number}}}}$

9999999

9 is the largest 1 digit number and the same repeating 7 times gives us the largest 7 digit number.

${ \large{ \sf{ \red{Smallest \: 8 \: digit \: number}}}}$

10000000

It is the smallest 8 digit number which has 7 zeros and 1 one.

$\large{\sf\orange{ Smallest\: 7\: digit \:number \:with \:3 \:different\: digits}}$

1000002

Here we have to use our logic in order to get the answer.

Firstly we need to think of the smallest 7 digit number :

1000000 .

Then we have to check if it has 3 different digits. It doesn't , so we will go to the next number.

1000001 .

We have to check if this has 3 different digits. It doesn't , so we will move onto the next digit.

1000002

We have to check if it has 3 different digits. Yes , it does.

The three different digits are 1 , 0 and 2 .

$\large{\sf\pink{ The \:difference\: largest \:8 digit \:number \:and\: smallest\: 7 \:digit \:number }}$

The largest 8 digit number is : 99999999

Smallest 7 digit number is : 10000000

99999999 (-) 1000000

= 98999999