Find the digit that makes [_]2,440 divisible by 9

Question

im working on a test help!!!!!

Answer 1

82,440/9=9,160

sum av digits gotta add up tu 9, or 18, or 27,...

Answer 2

 

Find the digit that makes [_]2,440 divisible by 9.

Answer 3

If your answers are 6, 8, 5, and 7 then your answer is 8.

Answer 4

All decimal numbers divisible by 9 have digits whose sum total is 9 or a multiple thereof. Since the sum of the digits 2+4+4=10 and 1+0=1, an 8 is needed, making the number 82440.