Reply to: Maths Puzzles please

[Swiss Tony]

How about magic squares?

Not quite the same number etc every time, but every column and diagonal adding up to the same number?

http://www.senteacher.org/Worksheet/30/Magic.xhtml

[Swiss Tony]

Does a black paddle count ?

Better than a pink screwdriver

[Board Game Geek]

Does a black paddle count ?

[Boudica]

red spade too, o dear, i have something in common with 'the scary one' aka Mr Marrillion Fan

[NotAllThere]

I've been digging my own grave for weeks! Boom boom!

Never mind.

7 hours later I worked out what your were wibbling about. I think I'd better go to bed.

[Halo Jones]

I've seen this before so I actually think "oh this is the one where I'm supposed to think of a red hamm...ah bugger"

Same here

[Advocate]

I've seen this before so I actually think "oh this is the one where I'm supposed to think of a red hamm...ah bugger"

[KentPhilip]

Red Drill.

I don't think this method works with Contractors - we're all too brainy and individualistic to fit a common mental mould.

[Moscow Mule]

Red Spanner.

[MarillionFan]

That's three of us then...

I've been digging my own grave for weeks! Boom boom!

Never mind.

[NotAllThere]

Mmm. I thought of a red spade. So half there.
Oh dear. Chef and I think the same. Unlucky! :

That's three of us then...

[MarillionFan]

Mmm. I thought of a red spade. So half there.

red spade

Oh dear. Chef and I think the same. Unlucky! :

[Advocate]

I got red EO...

[Scary]

Blue monkey wrench...

[ControlG]

My young daughter loves to get people to do this one

Think of a number

Double it

Add X (where X is even and magnitude can depend on person doing it)

Half it

Take away number you first thought of

answer is X/2

You can even show a slightly older child the algebra to explain it and because they are interested they usually understand it