UNOFFICIAL MARKSCHEME Edexcel Maths Calculator paper 09/06/2016

Can you show how many marks each question was out of?

I thought I did pretty well in this. It was definitely easier than the Non-Calculator paper and I think I got 70 marks in total in this. I did get a bit stuck on question 22, 24, 25 and 8b but I thought the rest were very easy. A bit of a shame that there weren't any quadratic simultaneous equations though. And I put 3.7 for the trial and improvement question so I'm not sure if I got it right. But all in all, I thought I did well so bring on August 25th (aka Results Day)

Hi I'm going to start and unofficial markscheme so add your answers
Reps are not necessary but would be appreciated

It would be really useful if you could remember the question numbers
1. Order numbers correctly and include a key
b) 9/20=
0.45
2a. 5a*2b*3c =
30abc
b. Factorise fully 3y +6 =
3(y+2)
c. Expand x(x-3)=
x^2-3x
3.
x=9.25
4. Smallest packet was best value for money because it was cheapest per bag of crisps
5. 4 times as many red than green: There were 0.4 blue and 0.15 yellow.
0.4+0.15+4x+x=1
0.55+5x=1
5x=0.45
x=0.09
4x=0.36
Green- 0.09 Red- 0.36
6a. 20.3
b. 68.04kg
c. 2.61m
7. 3.8
8a. 4:3
b. 480 pixels
9.x= 124 degrees
10. 7.92
11.£42.29
12. x=144 degrees
13.
-2 -1 0 1 2
-1 3 1 -1 3
Draw curve
14. 3 Bars
15. No, because 7766.22 was greater than 7500 pounds
16. 128g
b.11g
17. 30.1
18. 10a^5b^4
b. y= 5p^2-x
19.11 males
20. x= 0.29 or x= -2.29
21. 29.25
22. F.d- 1.6, 3.2, 2.4, 1.8, 0.3
23.28.9
24a. -1/3x+4
b. 2x/(x+1)(x-1)
25. 80.4

25 was 6 marks

Ignore 3.75, you're only looking at 1 d.p. The 3.75 thing is misleading, Because 3.8 is still further away than 3.7

For the last question one angle, two sides and the area are given. Can't you just workout the third side using the area and base then use cosine rule since you have three sides???

How many marks were the:

Stem & Leaf (1)
Cubic Graph (13)
Cumulative Frequency (?)
Histogram(around the 20's somewhere)
Equations (2a b and c)
Stratified Sample(19)

Wait a sec, x^3 - 5x = 34
3.7^3 - 5(3.7) = 32.153
34 - 32.153 = 1.847
So 3.7 is 1.847 away.

3.8^3 - 5(3.8) = 35.872
35.872 - 34 = 1.872
So 3.8 is 1.872 away.

This shows 3.8 being 0.025 further away than 3.7. 3.7 is closer. These are cubed numbers so even though you could round up from 3.75, the number gap changes as the numbers get bigger, so you count just assume to round up. They only care about 1d.p. numbers, using 3.75 doesnt matter. You have to find which 1d.p. is closer, and its 3.7.

Thanks have made the change


I think:
Q2a was 1mark
Q2b 1mark
Q2c 1mark or 2 mark?
Q3 I believe was 3 but could be 4
Q4 was 4mark
Q5 was 2mark(?)
Q6 a b and c I think were 2 each so 6?
Q7 4or5marks
Q8 a and b both equated to 4 marks?
Q13 a was 3 marks I believe b was 2 marksQ14 at least 4 marks
Q15 5marks(?)
Q16 a was 1 markb was 2 marks
Q18 a 1 markb 3marks
Q19 was 2 marks
Q24 a 2 marksb was 3 marks
Q25 6marks
As you can see I am unsure about many so PLEASE correct me and fill the blanks

I dont remember the question numbers..
smallest packet is best for value
11 students
IQR: 11
Pentagon: 114

how canu count the marks u got

Wait a sec, x^3 - 5x = 34

3.7^3 - 5(3.7) = 32.153
34 - 32.153 = 1.847
So 3.7 is 1.847 away.

3.8^3 - 5(3.8) = 35.872
35.872 - 34 = 1.872
So 3.8 is 1.872 away.

This shows 3.8 being 0.025 further away than 3.7. 3.7 is closer. These are cubed numbers so even though you could round up from 3.75, the number gap changes as the numbers get bigger, so you count just assume to round up. They only care about 1d.p. numbers, using 3.75 doesnt matter. You have to find which 1d.p. is closer, and its 3.7.

You're completely wrong, it's 3.8


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You're meant to round it up I think