One question I'm not sure what answer they are looking for. They are given letters and values eg
a=1 b=2 c=4 etc and then have to work out some sums eg a+c = ...5, obviously.
c/b = 2, fair enough.
But then there was 2a-1 and bc - a.
Bearing in mind this is Yr 5, and I don't think they've done a right lot of algebra yet, would you say these are supposed to be
21 -1 and 24 -1 (substitution of letter with number) or - as I automatically assumed -
2x1 -1 and 2x4 -1
DD thinks the former - that may be what they are expecting, but if a child had been exposed to any algebra they'd see it as the latter ... confusing, huh?
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Yr 5 DD doing reasoning test type things ... ambiguous maths question...
8 replies
GrimmaTheNome · 26/02/2009 21:13
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apostrophe ·
27/02/2009 15:05
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