1. Objectives
• State the divisibility rules for 2, 5, and 10.
• Determine if given numbers are divisible by
2, 3,5,6,9 and 10 using the divisibility rules.
• Find the common factors of whole
numbers using the divisibility rules for
2,3,5,6,9 and 10.

3. Divisibilty
Rules

4. In repacking large quantities of
relief goods into smaller packs,
you have to make sure that each
pack should have the same
quantity.
Your skill in dividing numbers will
be helpful in doing this. But
sometimes, you have to perform
division quickly.
What should you do?

5. To help you do this, a set of rules called divisibility rules was
developed. These rules allow you to determine if a number is
divisible by a certain divisor, no matter how big the number
may seem.
In this lesson, we will learn the divisibility rules for 2, 5, and
10.

6. Divisibility
It is the “ability” of a number to be divided by another number without
a remainder.
If a number is divided by a divisor and the result is a whole number
with no remainder, then the number is divisible by that divisor.
Example:
The number 720 is divisible by 2 because 720÷2=360.

7. Divisibility Rules
These are helpful ways in determining if one
number is divisible by another number without
having to do actual division.

12. • Tell whether 356 is divisible by 2.
• Tell whether 485 is divisible by 2, 5,
and 10.
• Determine which among 2, 5, and 10
are common factors of 25 and 40.
Examples:

16. • Determine if 366 is divisible by 6.
• Determine if 594 is divisible by 3, 6,
and 9.
Examples:

17. • Consider a batch of 120 bread rolls. Is it possible to
pack all the bread rolls into 2, 5, and 10 plastic
bread bags such that each bag will have the same
number of rolls?
• Mr. Walter has 105 pieces of marbled chocolates.
Can he give all the chocolates to his 3
grandchildren such that each of them will receive
the same number of chocolates?
Group Activity

18. Seatwork
:
1.Is 528 divisible by 2, 5, and 10?
2.Which among 2, 5, and 10 are common factors
of 16 and 30?
3.Tell whether 1 953 is divisible by 9.
4.Is 1 974 divisible by 3, 6, and 9?

19. Thank
You