Signing you in…

Signs of divisibility by 10, 5, 2, 9, 3

Divisibility rules help you see quickly whether a number divides evenly without doing full long division. In this lesson we practice rules for 2,3,5,9,102,3,5,9,10.
For 2, 5, and 10 look at the last digit
For 3 and 9 add the digits
If the test passes, the number divides evenly
Rules on examples
Content is available with subscription.
Get full access to all courses on the platform for one year with a single payment.
Unlike other platforms that charge per course, here you get everything for one price, and after one year of use there will be no automatic charge for the following year.