Question

test whether 6669 is divisible by 9​

Answer 1

Answer:

add all the digits

6+6+6+9=27

Step-by-step explanation:

there fore 27 is divisible by 9

(9×3=27)

Answer 2

Answer:

yes, 6669 is divisible by 9

Step-by-step explanation:

Rule: a number is divisible by 9 if the total sum of its digits is a number divisible by 9

let calculate: we have 6669 so the sum of its digits: 6+6+6+9 = 27

27/9 = 3 => 6669 is divisible by 9