Please can you settle a maths question disagreement between my son and I?

[DontBiteTheBoobThatFeedsYou]

Which is bigger.

0.6

Or

6.09

6.09

Think of it as money

£0.60
£6.09

Which would you rather be given

I tried the money example.

That won't convince him.

How old is he?

6.09, I would imagine. 0.6 isn't even 1 whole, so how can it be bigger than 6?

(Disclaimer - I'm not a massive Maths person!)

6.09

What reason does the person who thinks it’s 0.6 give?

Did you mean 0.6 vs 0.69? Either way, the second one.

I can't see how anyone could think that 0.6 was bigger than 6.09!

He's 10

6.09

The column to the left is the most significant. It matters more than individual digits.

Would he rather have 0.6 of a chocolate bar or 6.09 chocolate bars?

Why does he think its bigger? Its less than 1 whereas the other number is larger than 6

@DontBiteTheBoobThatFeedsYou

I tried the money example.

That won't convince him.

Ask your son to mark them on a number line?

How old is he?

Get some sweets.
Cut one in just over half and give it to him.

Eat 6 and a bit yourself.

Smugly

What is the reasoning of whichever one of you thinks 0.6 is bigger than 6.09?

How old is he? Can you get him to explain his reasoning?

X post.

10? Does he have any additional needs? He may need it explaining in a different way.

Tell him it's 6 whole ones in 6.09 but not even one whole in the 0.6.

He's must be just looking at the decimals and remembering that the point 6 is worth more than the point zero nine.

You're an adult and you obviously know the answer. Please don't use a Mumsnet thread to shame your son. Instead, spend some time Googling how best to teach children about decimal places. He's a child.

0.6 is just over half
6.09 is more than 6 !

He says
"Because the the tenths is greater than hundredths and the 6.09 is in the hundredths is in the hundredths column and the 0.6 is in the tenths colum."

I'm too shit at maths to understand what this means.

All I know is that it's wrong, whatever he's saying.

@HandScreen

You're an adult and you obviously know the answer. Please don't use a Mumsnet thread to shame your son. Instead, spend some time Googling how best to teach children about decimal places. He's a child.

Shame my son?!

What the fuck?

He TOLD me to ask.

Do you have any change?

Get some money! Show him 60p in coins and £6.09 in coins, it's more visual (if you have the coins handy!)

0.6 is bigger than 0.09
But he has 6.09 so he has 6 in the unit column which is more than the 0 in the units column of 0.6

Tell him to ask his teacher.

He needs to look at the number before the '.' First though. 0 is less than 6
He's talking about numbers after it

He's muddling 'hundreds' and 'hundredths'.

The money analogy isn't working because he thinks he and I are talking about two different things.
But because I don't know how he is being taught, I can't explain the difference.

Every maths working I was taught is so different from the way he is taught.