Maths problem for kids

[sealtt]

Am I being stupid or is this almost impossible to work out with the information given? The objective being to fill in the grid.

[-Pete-]

sealtt said:

Am I being stupid or is this almost impossible to work out with the information given? The objective being to fill in the grid.

There are only a few number combinations you can put across the top row. Assuming all numbers are positive, the top right has to be 4 or 8... after that I got stuck/bored, so I tend to agree with you

[sealtt]

I got that far too and then ended up with a massive list of potentials for the others, I'm sure it's not possible without hours of work.

This is meant to be for 9 year olds!

[Meoricin]

Are you sure there aren't further instructions which have been left out here? (because they've done them before so it's assumed they know the rules/ a page of the homework is lost or something)

[Meoricin]

To follow this up: you can only use each number 1-9 once, and you don't work out the sums using correct ordering (so you don't follow BODMAS), you work out in the order of the sum only.

It's pretty poor tbh, if it included the brackets to make it comply with BODMAS, and the clarification of the numbering rules then it'd be much clearer.

4,3,8
5,7,2
6,9,1

[sealtt]

That is all there was. My presumption was that the teacher was meant to fill out part of the grid but didn't.

[48k]

4,3,8
5,7,2
6,9,1

But you have to ignore the usual BIMDAS precedence rule to make the sums work.

Dang, beaten to it!

Edited by 48k on Monday 20th February 19:38

[bearman68]

Meoricin said:

To follow this up: you can only use each number 1-9 once, and you don't work out the sums using correct ordering (so you don't follow BODMAS), you work out in the order of the sum only.

It's pretty poor tbh, if it included the brackets to make it comply with BODMAS, and the clarification of the numbering rules then it'd be much clearer.

4,3,8
5,7,2
6,9,1

Very good, well done. Degree qualified engineer scratching the chin here - but as you say 5+7*2 Does not = 24

[deeen]

There are 9 blank boxes. If you assume you can use each of the integers 1-9 once only, it resolves itself.

ETA: But not as quickly as other people could resolve it!

[bearman68]

deeen said:

There are 9 blank boxes. If you assume you can use each of the integers 1-9 once only, it resolves itself.

Easy to say once the answer has been posted.

[sealtt]

Nicely done, working out the rules and then the answers too!!

Thank you very much.

[dazwalsh]

bearman68 said:

Very good, well done. Degree qualified engineer scratching the chin here - but as you say 5+7*2 Does not = 24

Does it not? Or am I due a whoosh parrot?

[43034]

dazwalsh said:

Does it not? Or am I due a whoosh parrot?

If you follow BODMAS, it does not. As others have already stated, you have to ignore BODMAS!

5 +(7*2) = 19