Question

How many natural numbers lie between 9sqare and 10square

Answer 1

18 natural numbers...!!

Answer 2

$\underline\bold{\huge{SOLUTIONS\: :}}$

The natural no's.lies between

$9^{2} and \: 10^{2}$

We know that

$9 ^{2} = 81 \: and \: 10 ^{2} = 100$

So, the natural no's.between them are

82,83,84,85,86,87,88,89,
90,91,92,93,94,95,96,97,
98,99

So there are 18 natural no's.between

$9 ^{2} and \: 10 ^{2}$

$\underline\bold{What \: is\: Natural\: Number?\: :}$

=>Counting numbers starting from 1 is called Natural number.

Eg:1,2,3,4,.........