Couple of sums for you

Zefan said:
Really? I fail to see what method this is teaching her apart from how to try and fail over and over until getting the answer randomly.
Click to expand...

Trial and error is still serving me well, and I'm partway through an engineering degree

kPATm said:
I wouldnt expect the answer has anything to do with advanced mathematics
Click to expand...

Raising to a power isn't advanced mathematics :(

Tealc said:
Binary.
Click to expand...

Good shout that man :D
 
I know raising to a power isn't advanced maths I was just saying to keep in mind that these sums have been given out to 12 year olds actually 11 year olds.
 
The question said missing 0s not missing operators, so I can't see how raising to a power is correct.

As already pointed out the simplest solution is binary, but that makes no sense to ask a 12 year old in a maths question, also given that the other side of the equation is in denary.
 
Thats true about the missing 0's and operators Mr^B. I will find out today I think as she has to hand in her homework this morning.
 
There is some logic to it, in the sense that the first three terms must end in 0 or 1. You also need to finish with a 9 so you need all three terms to end in 1, or two to end in 0 and one to end in 1. I strongly suspect (based on this being 12 year old home work) the answer will be 1100-110-11 = 979 and there being a typo in the answer.
 
I agre with Ashen about there probably being a typo. And sunny all 3 parts must contain the number 1 twice
 
After the amount I hurt my head trying to solve this yesterday, please let the teacher know that if there happens to have been a typo I will hunt them down and murder with an abacus.

thanks
 
Will Gill said:
After the amount I hurt my head trying to solve this yesterday, please let the teacher know that if there happens to have been a typo I will hunt them down and murder with an abacus.

thanks
Click to expand...

This. I spent over an hour trying to work these out. :mad:
 
So did anyone come up with an answer for the second one that isn't binary? Surely they can't both be typos?
 
I'm going to text my sister and see if my neice has had the paper marked. Will keep you all posted. Bet u can't wait:-)
 
Power of.

However would that not give you 1.1? Not sure myself though... ^1 is 11 but I can't for the life of me remember what negatives are...

Edit: doh missed the whole second page... And stupid for not remembering power 0!
 
Last edited:
She hasn't had the homework marked yet :-( She is not 12 she is 9:-O So it HAS to be a mistake on the paper
 
Fiddlesticks.

Doesn't she know how important it was to get that marked today?

Will have to sub this as well as I want to know this answer to a 9 year old's Maths question.
 
You must log in or register to reply here.
Back
Top Bottom