Question

how many natural numbers lie between 9 x9 and 10 x 10​

Answer 1

Answer:

18 Natural Numbers

There are 18 Natural Numbers between the squares of 9 and 10.

Answer 2

Answer:

Solution :

9×9 = 81 and 10 × 10 = 100

so Natural numbers between 81 and 100 are 19

They are 82 ,83 ,84 ,85 ,.............,99