If sum of digits is divisible by 9

Then, number is divisible by 9

####
**
Is 27 divisible by 9?
**

Sum of digits = 2 + 7 = 9

Since 9 is divisible by 9

27 is
**
divisible
**
by 9

####
**
Is 117 is divisible by 9?
**

Sum of digits = 1 + 1 + 7 = 9

Since 9 is divisible by 9

117 is
**
divisible
**
by 9

####
**
Is 758 divisible by 9?
**

Sum of digits = 7 + 5 + 8 = 20

Since 20 is not divisible by 9

So, 758 is
**
not divisible
**
by 9