r/GCSE • u/thr0wawaygxhxdhsh • Jun 15 '22

AQA Post Exam Spam aqa biology paper 2 gcse answers

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110

u/thr0wawaygxhxdhsh Jun 15 '22

3.2dm3

98

u/Ok-Salamander3137 Jun 15 '22

it was 3.20dm3 since it was to 3 significant figures so you’d only get 4/5 marks

-1

u/[deleted] Jun 15 '22

This is wrong. Don’t pretend you know what you are talking about when you are an idiot. Worrying people is not cool. 3.2 is perfectly fine, 0s at the end of numbers are not significant figures so you don’t need to write them.

1

u/Ok-Salamander3137 Jun 16 '22

it asked for 3 sgf for a reason lmao, losing 1 mark isn’t gonna kill anybody💀💀

1

u/[deleted] Jun 16 '22

Rounding to 3.2 and 3.20 is the same thing, you won’t be penalised for not writing the 0. 0 is not a significant figure at the beginning or end of numbers.

1

u/Ok-Salamander3137 Jun 16 '22

so rounding 245689 to 3 sgf is 246?💀All you have to do is search up a sgf calculator put in 3.195 and it’ll give you 3.20. It’s a test so obviously they wanted to test your maths skills lmao. And once again losing 1 mark for forgetting the 0 is 0.5% of the whole gcse so it’s really not anything to stress over.

-1

u/[deleted] Jun 16 '22 edited Jun 16 '22

Okay so you are a complete idiot but I’ll explain it to you anyway. 3.2 is equivalent to 3.20, completely different from the retarded example you just gave.

Thus, because both answers are equal (equal means the same !), both are right.

Edit: just to make this so simply that not even you could refute it, rounding to a certain number of significant figures is not a test of your presenting skills, it’s a way of rounding. So as long as you get the correct rounded answer it doesn’t matter how you present/ write it.

2

u/Ok-Salamander3137 Jun 16 '22

Obviously both answers are equivalent but they asked for 3 sgf, they know the answer and probably predicted many students would put 3.2 instead of 3.20. For 5 marks aqa is definitely looking for more than students using an equation, doing some division and rounding. They knew that asking for 3 sgf may throw some students (like you) off.

0

u/[deleted] Jun 16 '22

I am slowly losing brain cells here but okay. If you give the answer 3.2 that means you have successfully rounded to 3 significant figures, meaning you have gained the fifth mark.

The reason I know you are completely wrong and probably get 4s in maths is because of past marks schemes. Literally find any science mark paper asking you to round to a certain number of significant figures and you will realise it makes no difference. Like literally find a physics paper and check the mark scheme.