1. Divisibility Rules for 3,6,& 9
• Divide mentally
• 1. 60 ÷ 6 2.45 ÷ 3 3. 81 ÷ 9 4.24 ÷ 3 5. 45 ÷ 9
• Relay Game- pupils of a team take turns in
putting check mark under the correct column.
2 5 10
3 000
4 124
775
726

2. Who among you are officers of the SPG? As a member what do you usually do
to help your schoolmate
• The grade 5 pupils are setting up the social
center for a program. There 180 monoblock
chairs which they have set up in rows of either
3, 6, or 9. What are the possible set up
• What is being asked in the problem?
• What are given?
• What would you do? Would you go and try it
to make rows of 3, 6 & 9? Is there an easier
way to do?

3. What do you think, Is there an easier way to arrange the chairs without doing actual
division?
• Yes there is, we have this divisibility rules to
help us identifying if a number can be divided
by another number without actual division.
• Examples
• Add all the given digits
• Is the sum multiple of 3? 9?
• Therefore the divisibility rule for 3 & 9 is, if the
sum of a given number is a multiple of 3 or 9
that number divisible by 3 or 9.
1. 270
2. 1, 500
3. 1,188

4. Divisibility rule for 6: if the number is both divisible by 2 and 3
example: 1,350
• Group Activity: Using the digit 1, 3,5,and 9
give all the possible set/pair of numbers
divisible by 3, 6 & 9.
• Write or fill in the table below all your possible
answer
3 6 9
1.
2.
3.
4.
5.

5. 3 6 9
1. 15
2. 135 135
3. 351 351
4. 531 531
5. 39
6. 93
7. 195
8. 951
9. 159
10. 51

6. • Evaluation: Put a check under the correct
column by applying for divisibility..
3 6 9
1. 120
2. 630
3. 423
4. 4110
5. 846