1. Foldable
Fold your construction paper hotdog style and cut it so that is has 9 strips on one side. There is an example under the document camera. Label the strips as follows:
Divisible by 2
Divisible by 3
Divisible by 4
Divisible by 5
Divisible by 6
Divisible by 8
Divisible by 9
Divisible by 10
Divisible by 12

2. Math
Divisibility

3. I CAN use divisibility rules.
What Are You Learning?
I CAN use divisibility rules.

4. Why Do You Need To Know This?
You will need to know how to use divisibility rules in order to solve real world problems.

5. Remainder is zero when you divide one integer by another.
Vocabulary
Divisible
Remainder is zero when you divide one integer by another.

6. Divisibility Rules for 2, 5, and 10
An integer is divisible by…
2 if it ends in 0, 2, 4, 6, or 8
5 if it ends in 0 or 5
10 if it ends in 0

7. Is the first number divisible by the second?
f by 2
g. 1,118 by 2

8. Divisibility Rules for 3, 6, and 9
An integer is divisible by…
3 if the sum of its digits is divisible by 3
6 if the number is divisible by both 2 and 3
9 if the sum of its digits is divisible by 9

9. Is the first number divisible by the second?
d. 472 by 3
e. 174 by 6
f. 43,542 by 9

10. Divisibility Rules for 4, 8, and 12
An integer is divisible by…
4 if the last two digits are divisible by 4
8 if the last three digits form a number divisible by 8
12 if the number is divisible by both 3 and 4

11. Determine whether each number is divisible by 4, 8, or 12.
136
1,268
696 48 72
108
144
252

12. State whether each number is divisible by 2, 3, 5, 6, 9, or 10.90 81 20 37 45 99
240
333

13. Class Work