Perse paper 4
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Perse paper 4
Please help.
Qu.16:
6764 / 76 = 76
Use this result to write down answers to the following:
A) 6764 / 76. (89 - I can see that)
B) 7.6 / 0.89 I can't work out how that could be anything other than 8.539... But I don't see how I would be using the info they gave to work this out.
Am I missing something obvious?
UmSusu
Qu.16:
6764 / 76 = 76
Use this result to write down answers to the following:
A) 6764 / 76. (89 - I can see that)
B) 7.6 / 0.89 I can't work out how that could be anything other than 8.539... But I don't see how I would be using the info they gave to work this out.
Am I missing something obvious?
UmSusu
UmSusu
Re: Perse paper 4
6764/76 isn't 76.UmSusu wrote:Please help.
6764 / 76 = 76
Re: Perse paper 4
The actual question says: given 6764 / 89 = 76, write down
(a) 6764 / 76
(b) 7.6 * 0.89
We know 76 * 89 = 6764, so we then manipulate the decimal fractions.
(a) 6764 / 76
(b) 7.6 * 0.89
We know 76 * 89 = 6764, so we then manipulate the decimal fractions.
Re: Perse paper 4
Sorry daveg, I mis-typed : I should have checked it was in fact as WP points out:
6764/89 = 76
Thank you WP, but my paper says 7.6 / 0.89 for the second part, not multiply. Do you think it is a typo on the paper then?
Thanks,
UmSusu
6764/89 = 76
Thank you WP, but my paper says 7.6 / 0.89 for the second part, not multiply. Do you think it is a typo on the paper then?
Thanks,
UmSusu
UmSusu
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Re: Perse paper 4
UmSusu wrote:Sorry daveg, I mis-typed : I should have checked it was in fact as WP points out:
6764/89 = 76
Thank you WP, but my paper says 7.6 / 0.89 for the second part, not multiply. Do you think it is a typo on the paper then?
Thanks,
UmSusu
No you don't need to multiply as the numbers will remain the same only the decimal point moves. In part (b) the question has 3 numbers after the DP ( .6 and .89) so the answer should have 3 numbers after the DP as well. It will therefore be 6.764
Re: Perse paper 4
I am sorry, I feel really dumb now: I still don't get it
When I do the sum on the calculator it comes to 8.5 something. My son put the same answer as you mention and I can only assume that they want you to play with the numbers to use one of them as the answer but 'the calculator says no'
When I do the sum on the calculator it comes to 8.5 something. My son put the same answer as you mention and I can only assume that they want you to play with the numbers to use one of them as the answer but 'the calculator says no'
UmSusu
Re: Perse paper 4
The only sensible explanation if the original calculation is meant to help you is that it is a typo and the "divide" should be "multiply":
7.6*0.89 = 6.764.
7.6/0.89 = 8.539(and a lot more digits!)
7.6*0.89 = 6.764.
7.6/0.89 = 8.539(and a lot more digits!)
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: Perse paper 4
Thank you Toadmum
Once WP mentioned the multiplication option it made more sense, but I was worried I was still missing something glaringly obvious - DS didn't bother with that small detail of a typo and just put the number he assumed they were expecting: he said he was not going to waste his time
I am assuming then that everyone who sat the exam that year would have sat it with the misprint?
Thanks again
Once WP mentioned the multiplication option it made more sense, but I was worried I was still missing something glaringly obvious - DS didn't bother with that small detail of a typo and just put the number he assumed they were expecting: he said he was not going to waste his time
I am assuming then that everyone who sat the exam that year would have sat it with the misprint?
Thanks again
UmSusu
-
- Posts: 736
- Joined: Sat Dec 03, 2011 4:14 pm
Re: Perse paper 4
6764 ÷ 89 = 76
Use this result to write down the answers to each of the following:
(a) 6764 ÷ 76
Answer: (a):
(b) 7.6 × 0.89
Answer: (b):
_____________
The above is copied from the paper I have. If the question is 7.6 / 0.89 then the answer cannot be arrived at using the above numbers because the number facts for that calculation are not given.
Maybe the X sign was not printed fully on your copy.
Use this result to write down the answers to each of the following:
(a) 6764 ÷ 76
Answer: (a):
(b) 7.6 × 0.89
Answer: (b):
_____________
The above is copied from the paper I have. If the question is 7.6 / 0.89 then the answer cannot be arrived at using the above numbers because the number facts for that calculation are not given.
Maybe the X sign was not printed fully on your copy.
Re: Perse paper 4
Thanks leanmeanmum, definitely a division sign on my copy but I printed it off some time ago when I was preparing DS1 - maybe they corrected since?
At least I can put that to rest - DS has left me to it now and says he is not coming back to review it anyway
At least I can put that to rest - DS has left me to it now and says he is not coming back to review it anyway
UmSusu