# Talk

## DD and I don't understand her Y6 maths homework. Can you help?

(21 Posts)
Tue 22-Sep-09 19:04:58

It says:

Write down the multiples of the following pairs of numbers.

a) 6 and 2

etc.

Do they mean 3 because 3 x 2 is 6? Or what?

Thanks.

mmrsceptic Tue 22-Sep-09 19:08:18

the multiple is the product of the numbers I think

I think they just mean 12

technically, to write down the multiples of six would be every number to infinity that six can be multiplied to and likewise with two

alternatively if they want the highest common multiple then the answer for that question would be 6

could they be after highest common multiple? is it part of fraction and factor work?

PortAndLemon Tue 22-Sep-09 19:08:27

I think it's looking for something like

The multiples of 6 are 6, 12, 18...

The multiples of 2 are 2, 4, 6, 8, 10, 12, 14, 16, 18...

Their common multiples are 6, 12, 18...

PortAndLemon Tue 22-Sep-09 19:09:57

Isn't 6 the lowest common multiple?

Tue 22-Sep-09 19:10:20

Thanks GayT BUT it literally says

a) 6 and 2 (with a small line for the answer)
b) 7 and 9
c) 20 and 2

As they don't give any limit on the multiples they want her to write, I'm still unsure as to what they want.

nappyzonecantrunfortoffee Tue 22-Sep-09 19:10:25

i would have said 6= 1,2,3, 6 and 2=1,2

mmrsceptic Tue 22-Sep-09 19:11:19

lol port you are right, but it was a slip HONEST

and i've just tutored LCF and HCM

mmrsceptic Tue 22-Sep-09 19:11:59

ha HCF and LCM

what's the point, am dullard

mmrsceptic Tue 22-Sep-09 19:12:31

i think they want the product

it is a weird question.

PortAndLemon Tue 22-Sep-09 19:13:21

If there's only space for one number as an answer I would probably assume they want the lowest common multiple.

So

a) 6 and 2 : 6
b) 7 and 9 : 63
c) 20 and 2 : 20

but it's not well phrased, whatever they are after

i agree lowest common multiple

I thought the multiple of a number was another number that goes exactly into it iyswim?
So 6 could be 2,3 or 6.

But then I wouldn't have a clue what the answer to b) is.

I got a C in GCSE maths only 10 yrs ago - How bad is that?! lol

And I am totally WRONG!!

Ah well......

PortAndLemon Tue 22-Sep-09 19:17:11

No, those are factors. Effectively asking for the lowest common multiple of numbers x and y is the same as asking for the lowest number that has both x and y as factors.

i don't think we are helping, maybe you should go and ask the on the 'academic parents' thread

mmrsceptic Tue 22-Sep-09 19:18:03

i just googled that entire question and nothing came up so it's definitely an odd one

Tue 22-Sep-09 19:18:04

I'm glad it's not just me!

yellowvan Tue 22-Sep-09 19:40:04

I'd have said 12 and 24 and 36 and 48 etcbecause tghey are multiples of 2 AND 6. I think they want her to notice that these numbers are answers in the xtables of both numbers (in the 2x AND in the 6X) hth

Ah factors.... yes. Vaguely remember. Oh well, twas the thought..... lol

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