How to know if a number is divisible or not?

1. Anna has 40
chocolates, she wants
to share it to her friends
equally. But she is
having hard time
deciding on how to
group the chocolates.

2. Can I divide
them into 3?
Is there an
EASIER way?

3. Number DIVISIBILITY
(2, 3, 5,9, and 10)

4. How can we say
that a number is
DIVISIBLE OR NOT?

5. A number is DIVISIBLE if
when you divide it with a
certain number there will
be no remainder.

6. How can we
say that it is
divisible by 2?

8. How can we
say that it is
divisible by 3?

10. How can we
say that it is
divisible by 5?

12. How can we
say that it is
divisible by 9?

14. How can we
say that it is
divisible by
10?

16. It is an even number
The sum of the digit is multiple of 3
It ends with 5 or 0
The sum of the digit is multiple of 9
It ends with 0

17. Can we now help
Anna to divide her
chocolates equally?

18. What are the
numbers that can
divide her 40
chocolates equally?

19. 40 chocolates?
Can we divide it into
2? 3? 5? 9? or 10?

20. Is it an even number?
yes
Then is divisible
by 2.

21. Is the sum of the digits
is multiple of 3?
4 + 0 = 4, no
Then it is NOT
divisible by 3.

22. Does it end with 5 or 0?
Yes
Then it is
divisible by 5.

23. Is the sum of the digits
is multiple of 9?
4 + 0 = 4, no
Then it is NOT
divisible by 9.

24. Does it end with 0?
Yes
Then it is
divisible by 10.

25. Meaning to say
Anna can divide the
chocolates into
2, 5, or 10.
Yes