Step by step
The question
Question: is 1035 divisible by 6?
Divisible means it goes in exactly, with nothing left over.
1 Look at the last digit
1035 is 103 tens and 5.
2 goes into 10, so into every ten.
Only the last digit is left to check.
For 2: is it even: 0, 2, 4, 6 or 8?
The last digit is 5.
So no.
2 Add the digits
We add the digits: 1 + 0 + 3 + 5 is 9.
Why add the digits?
Each ten is 9 and 1 more.
Each hundred is 99 and 1 more.
3 and 9 go into the 9s and 99s.
What is left over is the sum of the digits.
For 3: 9 divided by 3 is 3, nothing left over.
So 3 goes into 1035.
3 Use 2 and 3
6 is 2 times 3.
So 6 goes in only when 2 and 3 both go in.
2 does not.
So no.
Careful!
6 needs both: 2 and 3.
Only 3 goes into 1035.
4 Write the answer
So 1035 is not divisible by 6.
5 Check
Let's check by dividing.
1035 divided by 6 is 172, with 3 left over.
The tests were right!
Let's look back.
First: look at the last digit.
Then: add the digits.
Then: use 2 and 3.
Then: write the answer.
Last: check.