Question

How many numbers have 8-digits?????

Answer 1

hi friend,

the numbers having 8 - digits are

_ _ _ _ _ _ _ _

the first blank has 9 chances (1,2,3,4,5,6,7,8,9)

→the second blank has 10 chances including 0

→similarly third,fourth,fifth,sixth,seventh,and eighth has 10 chances

so the number of 8 digit numbers are

→9×10×10×10×10×10×10×10

→90000000


I hope this will help u ;)

Answer 2

The smallest number with 8 digits is -
10000000

The largest number with 8 digits is -
99999999

The numbers with 8 digits are -

(99999999 - 10000000) + 1
= 89999999 + 1
= 90000000

Answer) There are 90000000 having 8 digits.