Question

____, 44, 89 what is the before number?

Answer 1

let the blank be x

89-44= 45

there fore the difference between 2nd and 3rd number is 45

when u subtract 1st number from 2nd number u should get 45 difference

so, 44-x=45

-x=45-44

-x=1

so, ur answer is -1