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# Edexcel IGCSE Maths watch

1. Does anyone know what this topic is called?
EG: p= 4 x 10^2m write p^2 in standard form.

p= 4x10^2m
p^2= (4x10^2m) ^2
=(4) ^2 (10^2m) ^2
=4^2 x 10^4m
=16x10^4m
=1.6x (10^4m x 10^1)
= 1.6 x 10^4m+1

The above is very vague but I will happily go into more detail if people wish. The exam will be harder than most past papers. i suggest you do the specimen ones.
2. (Original post by Fxnto)
Does anyone know what this topic is called because I spoke to Edexcel who said it has been thought about being brought up as one of the last questions.

EG: p= 4 x 10^2m write p^2 in standard form.

p= 4x10^2m
p^2= (4x10^2m) ^2
=(4) ^2 (10^2m) ^2
=4^2 x 10^4m
=16x10^4m
=1.6x (10^4m x 10^1)
= 1.6 x 10^4m+1

If you want me to go into detail in any part reply. Another note, questions HIGHLY likely (almost certain) going to come up in maths igcse:

- circle theorems, the questions will seem impossible because there will be information given at tangent so you need to draw on lines added to the diagram.
- vectors, there will be a classic part a) and part b) so when it seems like you can't do the question, use the information from part b).

The above is very vague but I will happily go into more detail if people wish. The exam will be a LOT harder than any of the past papers.
Hi there
I've moved your thread to the Maths forum where hopefully you'll get more answers In future, it's best to select the subject from the list here and create a thread in there instead If you want to see where threads belong, check out this thread

There's no reason at all that the exam would be much harder than the specimen papers, so please stop scaremongering.
3. It’s standard form

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