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 Post subject: Need help pleasePosted: Sat Feb 23, 2013 5:45 pm

Joined: Sun Jan 20, 2013 10:22 am
Posts: 73
https://www.dropbox.com/s/60uhuw2ek5ej1 ... 0%2022.jpg

I am confused between nearest to ten and nearest to tenth, any help please. Are the answers are correct in the test attached.

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 Post subject: Re: Need help pleasePosted: Sat Feb 23, 2013 5:52 pm

Joined: Fri Sep 15, 2006 8:51 am
Posts: 8598
q1 - 2537

to the nearest 1000 would be 3000 so that one is correct

to the nearest 100 would be 2500 - (400 is not right)

to the nearest 10 would be 2540 (nearly right but you need the whole number)

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 Post subject: Re: Need help pleasePosted: Sat Feb 23, 2013 6:03 pm

Joined: Sun Jan 20, 2013 10:22 am
Posts: 73
Thank you very much

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 Post subject: Re: Need help pleasePosted: Sat Feb 23, 2013 6:09 pm

Joined: Mon Aug 22, 2011 8:20 pm
Posts: 1706
Location: Warwickshire
Round to the nearest ten means that the answer will be a multiple of 10 (i.e. it will end in 0) - e.g. 10, 170 or 2450
numbers ending in 0 up to 4 (or 4.99999 if there are decimal places) will round down
numbers ending in 5 up to 9 (or 9.99999 if there are decimal places) will round up

Round to the nearest tenth means the answer will have only one decimal place - e.g. 242.3, 69.2 or 154.0

You should now be able to see that only 1a and 2a-2d are correct.

No try to work out the correct answers for the other ones (1b, 1c, 2e, 3a, 3c). If you still can't see the correct answers use your mouse to highlight the space between the rows of asterisks and they'll magically appear

*****
1b - 2500
1c - 2540

2e - 18

3a - 20cm
3c - 23.5cm
*****

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 Post subject: Re: Need help pleasePosted: Sat Feb 23, 2013 6:18 pm

Joined: Sun Jan 20, 2013 10:22 am
Posts: 73
Thank you for everyone's help.

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 Post subject: Re: Need help pleasePosted: Sun Feb 24, 2013 12:12 pm

Joined: Sun Jan 20, 2013 10:22 am
Posts: 73
https://www.dropbox.com/s/h8igtquaou0yn ... 7%2051.jpg

Correct the mistakes. Can someone correct me if there is any error.

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 Post subject: Re: Need help pleasePosted: Sun Feb 24, 2013 12:30 pm

Joined: Fri Sep 15, 2006 8:51 am
Posts: 8598
I think 5 of the number in Q5 would round to 2.6

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 Post subject: Re: Need help pleasePosted: Sun Feb 24, 2013 12:31 pm

Joined: Mon May 16, 2011 1:05 pm
Posts: 4883
A quick glance but 1b isn't right and you have missed a couple of correct answers from the last question

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 Post subject: Re: Need help pleasePosted: Sun Feb 24, 2013 12:34 pm

Joined: Mon Jun 18, 2007 2:32 pm
Posts: 7140
Location: East Kent
I can recommend the Usborne Illustrated Dictionary of Maths, it covers basic stuff like rounding reallly well and has internet links.

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 Post subject: Re: Need help pleasePosted: Sun Feb 24, 2013 12:45 pm

Joined: Mon Feb 12, 2007 1:21 pm
Posts: 14008
You should ask your maths teacher for help with this if you are still stuck.

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