number sequence
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number sequence
Can you please help with this....
5,10,30,( ), 600, ( )
Thanks
5,10,30,( ), 600, ( )
Thanks
Re: number sequence
X2 X3 X4 X5 X6sonasona wrote:Can you please help with this....
5,10,30,( ), 600, ( )
Thanks
So 120 and 3600?
Re: number sequence
I'm not getting these either
( ),1,4,16,64
21,12,24,42,84,48, ( )
( ),1,4,16,64
21,12,24,42,84,48, ( )
Re: number sequence
( ),1,4,16,64
x4 - so 0.25 or 1/4
21,12,24,42,84,48, ( )
reverse the digits, then double - so next one will be double 48, i.e. 96
x4 - so 0.25 or 1/4
21,12,24,42,84,48, ( )
reverse the digits, then double - so next one will be double 48, i.e. 96
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Re: number sequence
That last one is just pure evil, sort of thing my nerdy 13 year old would invent. Where did it come from?
Re: number sequence
I'm not sure who produced these questions.....they are in my archive of older papers and I gave them to someone so their Dd could prepare for 2014. They are now coming back to haunt me and it's a little embarrassing as I can't explain. I don't have the answers either so can't even fluke it! I do have this forum though
Many many thanks
Many many thanks
Re: number sequence
Need help please
25,?,49,64,?
from SD book.
Thanks
25,?,49,64,?
from SD book.
Thanks
Re: number sequence
36
Square numbers
Square numbers
Re: number sequence
I'm so thick! Thank you