paddy_t

I am currently doing a degree in Primary Education and have been given the following questions to answer any help you may give is appreciated. Please write the question number next to your answer please. Thank You.

7.a)Which of these numbers is the odd one out? Explain your answer.
16 34 52 64 70

b)Which amount is the odd one out? Explain your answer.
28p 36p 48p 67p 85p

8.Add the next 2 terms in the sequences below:-
a) 1, 3, 9, 27, __, __
b) 1, 2, 6, 15, __, __
c) 3, 5, 8, 13, 20, 31, __, __

9. Complete the following tables giving the 10th and nth terms:

1 -> 1, 2 -> 3, 3 -> 5, 10 -> ?, n -> ?

1 -> 6, 2 -> 10, 3 -> 14, 10 -> ?, n -> ?

1 -> 5, 2 -> 8, 3 -> 11, 10 -> ?, n -> ?

1 -> 4, 2 -> 9, 3 -> 16, 10 -> ?, n -> ?

Any help is appreciated.

Audis-get-me-hard

7

A) 64 is the odd one out, as the 2 numbers add up to 10, where as every other pair adds up to 7

michaelro

8
a) 81, 243
b) 31, 56
c) 44, 61

KiwiGTI

9)
19, 2n-1
42, 4n+2
32, 3n+2
121, (n+1)^2

Duck_Pond

48p as it needs at least 5 coins to make it, as opposed to 4 for the other amounts. I think.

Jerome

Only weird people can do maths sequence doodahs.

lpski1

explain your answer to B please, i have a different answer.

b) 34, 73

davegtt

This is Primary school stuff?

Best get back to basics...lol

lpski1

whats your take on it Dave ?

davegtt

number 8 I have the same answer as michael but b same as you. double +2 double +3 double +4 double +5

TimmyboyWRX

man i can never do these things! just as well i dont teach maths lol, far too logical for me!

lpski1

right, we need Michal to backup his scribble

lpski1

while we're at it, i might like to disagree with 8c

it jumps an odd number, and his answer jumps two.

explain your workings for those extra points

KiwiGTI

b) 1, 2, 6, 15, __, __

You are just added the square of the ordinal value of the number

1 + (1)^2 = 2
2 + (2)^2 = 6
6 + (3)^2 = 15
15 + (4)^2 = 31
31 + (5)^2 = 56
etc

movi-star

iTrader: (1)

These are'nt primary school level questions, no way are these aimed at the under 11's!!! More like Mensa or Degree level.

The IQ test that was advertised on this site is easier than these!

lpski1

ok it works, but he did say they are for Primary School Children WookieGTI

salsa-king

I think these questions are for the people who WILL be teaching primary skool kids.
make you then cleverer than the under 11's

warrenm2

Q7a is bulls**t.

I could say the answer is 70 because its the only one which is a multiple of 7 (or 10), or 52 cos its a multiple of 13, Im sure I could think of cases where each one could be the odd one out if I could be bothered...

mpr

doh!

paddy_t

I've worked out a few of the questions now:
7.a) 64 is odd as if u add 18 to the previous number (starting from 16) you get the next in the line but 64 does not occur or it could be as Audis-get-me-hard says if you add the digits of each number u get 7 except for 64 giving u 10

7.b)Duck_Pond says that all numbers except for 48 would require a minimum of four coins to make up, 48 requires 5 coins

8.a)U multiply the previous answer by 3 to get the next

8.b)U add square numbers i.e 1 4 9 16 25 36 49 64 etc

8.c)U add the prime numbers i.e 2 3 5 7 11 13 17 19 23 etc

9. See KiwiGTI for the correct answer

lpski1

Primary school children adding prime numbers !! yeah right

Neverguess

8B I make it 31 & 56 Lpski

lpski1

yes thankyou.

D1CCY

7a) 64 (comes with chips, all the rest come with fried rice).