Help needed on this sequence question......
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Help needed on this sequence question......
Please can anyone help with this vr question?
Give the next number in the following sequence..
1 , 8 , 27 , 64 , ?
The answer given is 125 but I cannot work it out to show my daughter.
Give the next number in the following sequence..
1 , 8 , 27 , 64 , ?
The answer given is 125 but I cannot work it out to show my daughter.
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Re: Help needed on this sequence question......
They are cubed numbers;
1 x 1 x 1 = 1
2 x 2 x 2 = 8
3 x 3 x 3 = 27
4 x 4 x 4 = 64
5 x 5 x 5 =125
1 x 1 x 1 = 1
2 x 2 x 2 = 8
3 x 3 x 3 = 27
4 x 4 x 4 = 64
5 x 5 x 5 =125
Re: Help needed on this sequence question......
[quote="Tink2010"]Please can anyone help with this vr question?
Give the next number in the following sequence..
1 , 8 , 27 , 64 , ?
The answer given is 125 but I cannot work it out to show my daughter.[/quote]
By my reckoning, the next number should be 117:
The difference between 1 and 8 is 7 (4th prime number)
- between 8 and 27 is 19 (8th prime number)
- between 27 and 64 is 37 (12th prime number).
The 16th prime number is 53, I think?
Give the next number in the following sequence..
1 , 8 , 27 , 64 , ?
The answer given is 125 but I cannot work it out to show my daughter.[/quote]
By my reckoning, the next number should be 117:
The difference between 1 and 8 is 7 (4th prime number)
- between 8 and 27 is 19 (8th prime number)
- between 27 and 64 is 37 (12th prime number).
The 16th prime number is 53, I think?
Outside of a dog, a book is a man's best friend. Inside of a dog it's too dark to read.Groucho Marx
Re: Help needed on this sequence question......
Ah thank you so much, she has learnt lots of difference techniques on these sequences but not cubed numbers.
Really appreciate your help
Really appreciate your help
Re: Help needed on this sequence question......
Ahh...Sally-Anne wrote:They are cubed numbers;
1 x 1 x 1 = 1
2 x 2 x 2 = 8
3 x 3 x 3 = 27
4 x 4 x 4 = 64
5 x 5 x 5 =125
Outside of a dog, a book is a man's best friend. Inside of a dog it's too dark to read.Groucho Marx
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Re: Help needed on this sequence question......
Does it ever feel to you as if it were us - parents - doing the 11+?
It felt like I hit rock bottom; suddenly, there was knocking from beneath... (anon.)
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Re: Help needed on this sequence question......
Sometimes I look at these questions and it takes me a good while to work them out. Our poor kids have to do them in seconds under pressure. Glad those days are well behind me!
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- Joined: Sat Jul 24, 2010 10:45 pm
Re: Help needed on this sequence question......
Same here!
It felt like I hit rock bottom; suddenly, there was knocking from beneath... (anon.)
Re: Help needed on this sequence question......
I think it will be to hard for little girl to understand^ but the theory is really interesting.By my reckoning, the next number should be 117:
The difference between 1 and 8 is 7 (4th prime number)
- between 8 and 27 is 19 (8th prime number)
- between 27 and 64 is 37 (12th prime number).
The 16th prime number is 53, I think?