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[youarenotkiddingme]

Sorry if title makes this seem interesting but it's really not!

Ds handed in his maths homework and had it handed back yesterday to re do and got told to show working out properly.

Except how the feck do you answer this?

*Some tins of beans are packed into 7 boxes of which there are 12 tins per box. If I pack them into 4 boxes instead, how many tins will there be in each box?
*

21

This is a wind up, yes?

I should ds thinks it's a trick question as apparently they do it now with maths and the boxes only hold 12 tins.

I think it's badly worded and it's

7x12=84
84/4= 21

There are 84 tins and 4 boxes. 22 tins per box.

Assuming all boxes are full...

Multiply 7 by 12 to find out how many tins there are.

Divide that number by 4 to find out how many in end up in each box.

Why would it be a wind up?

Seven boxes of 12 tins of beans will be 84 tins in total.

If you split the 84 tins of beans between 4 boxes instead, there will be 21 in each box.

Hope this helps.

Oops typo, yes 21.

7 × 12 = 84

84 ÷ 4 = 21

Answer = 21

Show that he multiplied the 12 by 7 to get the total number of tins. Then he divided it by 4 to get the new number of tins per box.

To show working...

7 boxes x 12 tins per box = 84 tins.
Repacked into 4 boxes...
84 tins ÷ 4 boxes = 21 tins per box

Ignore my first line, I misread so it's not relevant. The rest is right though.

You need to work out how many tins there are first, so 7x12=84. Then split the 84 tins into 4 boxes so 84/4 = 21 tins in each box.

Except how the feck do you answer this

do you not tell him to write down how he got that answer? am i missing something?

He has to show how he did it in his head, ie, 7x12 = 84 cans in total, 84/4 boxes =21. Therefore answer is 21 cans in each box.

12x7= 84 tins of beans.

84 divided by 4 = 21

21 tins of beans per box.

Can't find the divided symbol !

To show working out, I would draw 7 squares with 12 circles in each (i.e. The boxes with the tins in) and then "= 84" next to it. Then I would draw 4 squares and divide the 84 tins into each box, which would equal 21 in each.

(My dcs are 7 and 5 and would do the working out like this if they had that sort of maths problem to solve. Not sure if the working out needs to be different in some way if your ds is older)

@Euphemie

What are you on about?

I have given the correct answer - which was the first post after the OP's original post, with the working out 5 or 6 posts in!

READ THE FULL THREAD BEFORE HAVING A GO.

And have this back...........

Thanks everyone.

Ds is autistic but is amazing at maths. The wording of the questions is causing him difficulty because he reads it as the box holds 12 tins.

I couldn't get him to understand that it doesn't say they only hold 12 just when they put total amount in 7 boxes there was 12 in each.

I said there was 84 tins but hoped if o could get lots of identical answers he'd believe me!

Doing the actual maths isn't the issue tbh.

Thanks for all your help so early in the morning!

Could you help him see it visually, OP, with counters and little pots?