Help needed with NFER 11C 47 & 11B 45
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Help needed with NFER 11C 47 & 11B 45
What is is quickest method to work out:
Q47 A map of Scotland is drawn to scale of 1:325,000.
how many CM on the map would show 65KM?
Q45 A map of Holland is drawn to a scale of 1:400,000.
What real distance is represented bt 1CM on the map?
Q47 A map of Scotland is drawn to scale of 1:325,000.
how many CM on the map would show 65KM?
Q45 A map of Holland is drawn to a scale of 1:400,000.
What real distance is represented bt 1CM on the map?
Re: Help needed with NFER 11C 47 & 11B 45
Q47scooby1 wrote:What is is quickest method to work out:
Q47 A map of Scotland is drawn to scale of 1:325,000.
how many CM on the map would show 65KM?
Q45 A map of Holland is drawn to a scale of 1:400,000.
What real distance is represented bt 1CM on the map?
1:325,000 means 1 cm shows 325,000 cm,
converted to metres 1 cm shows 3250 metres
converted to km 1 cm shows 3.25 km
so to show 65 km
65/3.25 which gives 20 cm
Q45
using the same logic of converting to metres and then km
1cm represents 4km
That is how I would explain the problem to my children - I'm not sure they are quite up to this at the moment though.
My DS finds this type of questions very difficult. Can anyone point me to any sample questions /exercises on the internet? I have looked at Guest 55's useful maths websites and I have also googled but to no avail. Maybe I'm inserting the wrong terms in google /the websites????I have put in " maths scales" in. Anybody got any better ideas for a search term?
Thanks
Thanks