Question

which number is divisable by three?
94
53
73
123

Answer 1

Try to divide each number by 3

Answer 2

Add the digits and see if any sum is divisible by 3.

Answer 3

so i need a calculater?

Answer 4

Follow @ParthKohli advice - add up the digits of the number. If that is divisible by 3, then the original number is also divisible by 3.

e.g. for 123 we have 1+2+3=6 and 6 is divisible by 3 therefore 123 is also divisible by 3.

Answer 5

oh that makes sense i think i get it now thanks!!!

Answer 6

yw :)

Answer 7

you might find this site useful: http://www.mathsisfun.com/divisibility-rules.html