Maths
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Re: Maths
pens: 4 8 12 16 20 24 ....Pens are sold at four for £5 and books are sold three for £4.
Ken bought ann equal number of pens and books. He paid a total of £124.
How many pens and books did he buy altogether?
books: 3 6 9 12 15 18 21 24 ...
Look for common multiples which are 12, 24, 36
Now try to see which gives the correct amount.
12 pens =
12 books =
24 pens = ..etc
Look for common multiple
Re: Maths
Alternatively if you said number of pens = number of books = x, you could write it out as:rejim2 wrote:Maths help!!
Pens are sold at four for £5 and books are sold three for £4. Ken bought ann equal number of pens and books. He paid a total of £124. How many pens and books did he buy altogether?
Many Thanks.
(5/4)x + (4/3)x = 124
and solve for x.
Involves adding mixed fractions and a bit of algebra though, so Guest55's way is probably easier for 11 plussers.
Re: Maths
Again as always I would encourage children to use a visual aid (bar model).
My yr 6 mids had a fab time solving complex algebra with Cuisenaire rods and recorded using algebra without manipulating complex equations.
So lovely to watch them fly prior to leaving primary.
My yr 6 mids had a fab time solving complex algebra with Cuisenaire rods and recorded using algebra without manipulating complex equations.
So lovely to watch them fly prior to leaving primary.
Re: Maths
Brilliant way to do it Moved, I will pinch that idea!moved wrote:Again as always I would encourage children to use a visual aid (bar model).
My yr 6 mids had a fab time solving complex algebra with Cuisenaire rods and recorded using algebra without manipulating complex equations.
So lovely to watch them fly prior to leaving primary.
The Cuinaire rods would make is visual, especially with the different colours.
By doing something like this it creates an understanding of the problem, rather than just doing algebra by rote.