Download Math Divisibility Rules

Name: ___________________________________
Date: ______________________
Math Divisibility Rules
Students will further develop their understanding of whole numbers – analyze divisibility
rules.
A number is Divisible
by
2
3
4
5
6
8
9
10
IF
Example
The last digit is
(0,2,4,6,8)
The sum of the digits is
divisible by 3
The last 2 digits are
divisible by 4
The last digit is a 0 or 5
128 is
129 is NOT
381 (3 + 8 + 1 = 12 and
12  3 = 4)
1312 is (12  4 = 3)
The number is divisible
by both 2 and 3
The last 3 digits are
divisible by 8
The sum of the digits is
divisible by 9, or the
number is repeating 9’s
i.e. 99; 999; 9,999
The number ends in 0
15
1020
12 divided by 2 = 6
12 divided by 3 = 4
109816 (816  8 = 102)
1,629
1 + 6 + 2 + 9 =18 and
18 divided by 9 = 2
1,350