Question

What should we added to greatest 4-no. to get smallest 5-no.?

Answer 1

What should we added to greatest 4-no. to get smallest 5-no.?

this is an easy question

let the number be x

 greatest 4-no.= 9999

smallest 5-no = 10000

now,

9999 +x = 10000

x = 10000 - 9999

x  = 1

:)

Answer 2

The answer should be 1

1000-999=1