Can anyone help me solve : 5³ - 10² = ?⁵
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Can anyone help me solve : 5³ - 10² = ?⁵
5³ - 10² = ?⁵
steps please
steps please
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Re: Can anyone help me solve : 5³ - 10² = ?⁵
well I think I would turn it into normal numbers
5^3 = 125
10^2 = 100
so 125-100=25
or 5^2
5^3 = 125
10^2 = 100
so 125-100=25
or 5^2
Re: Can anyone help me solve : 5³ - 10² = ?⁵
5x5x5 - 10x10
125 - 100
= 25
Ds2 tells me this is BIDMAS
125 - 100
= 25
Ds2 tells me this is BIDMAS
Knowledge is knowing that a tomato is a fruit, wisdom is not putting it in a fruit salad !
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Re: Can anyone help me solve : 5³ - 10² = ?⁵
Thanks, I did know how to solve the first part, looking for ?
but the answer has to be to the power of 5
I am looking for ? in this sum ?⁵
but the answer has to be to the power of 5
I am looking for ? in this sum ?⁵
Re: Can anyone help me solve : 5³ - 10² = ?⁵
Has to be a typo if an 11+ question.
Re: Can anyone help me solve : 5³ - 10² = ?⁵
I agree that its probably a typo and should read ?^2 rather than ?^5.
(If it really is ?^5, then ? = 25^(1/5) = 1.904 )
(If it really is ?^5, then ? = 25^(1/5) = 1.904 )
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Re: Can anyone help me solve : 5³ - 10² = ?⁵
Thanks proud Dad.
This is non-calculator, can you tell me the steps you used to get to 1.904
This is non-calculator, can you tell me the steps you used to get to 1.904
Re: Can anyone help me solve : 5³ - 10² = ?⁵
Unless you use log tables you can't do this without a calculator I don't think. Not easily anyway. Unless you use trial and improvement, that would take for ever.topsyturvy wrote:Thanks proud Dad.
This is non-calculator, can you tell me the steps you used to get to 1.904
There is a way of finding out square roots without a calculator (I learnt, then forgot it many many moons ago) but I wouldn't expect any child these days to have a clue, let alone finding a 5th root.
Re: Can anyone help me solve : 5³ - 10² = ?⁵
I didn't strictly use a calculator (but I did use the calc app on my mobile to work out 25^0.2 )topsyturvy wrote:Thanks proud Dad.
This is non-calculator, can you tell me the steps you used to get to 1.904
You can't really do it without a calculator tbh. Only way I can think of to do a rough estimate in my head is that 2^5 = 32 so the answer would be a bit less than 2.
As I and others said I think the question has a typo.
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Re: Can anyone help me solve : 5³ - 10² = ?⁵
Thank you, much appreciated for all replies and feedback!