Can anyone help me decipher a partially remembered acronym?
DS says he's struggling with something he says is called "XNMP" - but google isn't helping, which makes me think he has mis-remembered the acronym.
It appears to be something to do with cross multiplying, i.e. (hope formatting works)
a/b
___ = a/b * d/c
c/d
Once I know what he's actually on about, I'll have no trouble (am v good at maths) - it's just working out what it is that he's stuck with.
Thanks!
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Year 6 maths...
37 replies
FermatsTheorem · 20/11/2018 16:22
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