Edexcel Mathematics A Linear Higher Practice Book Answers

GCSE Mathematics Linear Foundations Answers

1. Words and figures
(a) £3.50 (1 mark)
(b) £3.05 (1 mark)
(c) £3510 (1 mark)

2. Shapes
(a) Mark the right angle (1 mark)
(b) Mark the acute angle (either angle at the bottom) (1 mark)
(c) Draw a kite (1 mark)

3. Circle
(a) Draw a circle radius 4 cm (1 mark)
(b) Draw the diameter (1 mark)

4. Cinema tickets
(a) £10.75 (1 mark)
(b) Adult tickets = 7 (2 marks)
(c) Change = £1.55 (3 marks)

5. Pattern
(a) 3rd even number = 6 (1 mark)
(b) Complete pattern 4 (1 mark)
(c) Table missing values are 12 and 15 (2 marks)
(d) Multiply 100 by 3 or similar answer (1 mark)

6. Bar chart
(a) Complete two missing bars (2 marks)
(b) 6 red sweets (1 mark)
(c) Mode = yellow (1 mark)
(d) 29 sweets in the bag (1 mark)

7. 3D shapes
(i) Cone
(ii) Cylinder (2 marks)

8. Fractions and decimals
(a) 3/4 is shaded (2 marks)
(b) Shade 2/7 of the shape (1 mark)
(c) 0.3 (1 mark)
(d) 39/100 (1 mark)

9. Line AB
(a) Length in cm = 6.4 (1 mark)
(b) Mark midpoint with X (1 mark)

10. Post Office
(a) Complete frequency table with 7, 4, 2, 1, 2 (2 marks)
(b) Mode = 2 (1 mark)
(c) Range = 4 (2 marks)

11. Carpet cleaner
(a) £22 (2 marks)
(b) 8 days (3 marks)

12. Marking number line
(a) 33 (1 mark)
(b) 180 (1 mark)
(c) Mark 110 (1 mark)
(d) mark 0.27 (1 mark)

13. Numbers in a rectangle
(a) Multiple of 4 = 12
(b) Factor of 21 = 3
(c) Prime = 3 or 11 (you don't need both) (3 marks)

14. Symmetry
(a) Shade one shade (1 mark)
(b) Shade one square (1 mark)

15. Revision class
22 students went to chemistry (3 marks)

16. Pie chart
Angles were 50, 115 and 195 degrees (4 marks)

17. Volume of a cuboid
87.75 (2 marks)

18. Formula
(a) F = 17.6 (2 marks)
(b) C = 20 (2 marks)

19. Angle bisector
Construct angle bisector (2 marks)

20. Exchange rate
(a) Euros = 546 (2 marks)
(b) Pounds = 78 (2 marks)

21. Scatter graph
(a) Plot two missing points (1 mark)
(b) The taller the sheep, the longer it is. (1 mark)
(c) Estimate of sheep length = 108 cm (or a number near this) (2 marks)

22. Transformations
(a) Enlarge shape scale factor 2 anywhere on grid (2 marks)
(b) Reflection in the y axis (or you could have said reflection in line x=0) (2 marks)

23. Algebra
(a) 4m (1 mark)
(b) 4pq (1 mark)
(c) 15x - 10 (1 mark)
(d) (2 marks)

24. Ratio
(a) 3 : 2 (2 marks)
(b) 45 apples (2 marks)

25. Mean from a frequency table
12.975 minutes (13 mins will be fine) (4 marks)

26. Indices
(a) (1 mark)
(b) (1 mark)

27. Using a calculator
(a) 2.26541555 (2 marks)
(b) 2(1 significant figure) (1 mark)

28. Semicircle
Perimeter in cm = 20.57 (2 decimal places) (3 marks)

I did better than I thought.

But for question 21 b, would I not get the mark if I put 'there is a positive correlation'; I think it asked to describe the correlation, not talk about the sheep. Uh oh.

Oh and...thanks!

I put the same, positive correlation...hope its right!

for question 8a they asked us to simplyfy it and i put 2/3 is that the same as 3/4??

(Original post by sensative)
for question 8a they asked us to simplyfy it and i put 2/3 is that the same as 3/4??

nope!

(Original post by queenbea)
I put the same, positive correlation...hope its right!

no sorry, it asked you to describe the relationship rather than the correlation

bump in case people want to see this

for the last question was u ment to halve the answer seen as it is half a circle???

Overall what mark do u need for a C
i heard it was 159 ?

grade boundaries have not been decided yet

I think it may be slightly higher than that

(Original post by sensative)
for the last question was u ment to halve the answer seen as it is half a circle???

yes and then add the diameter

Mr M, for the last question i did everything correct, but did not add the diameter at the end - how many marks do you think I would get?

(Original post by alethea24uk)
Mr M, for the last question i did everything correct, but did not add the diameter at the end - how many marks do you think I would get?

2 out of 3

(Original post by Mr M)
GCSE Mathematics Linear Foundations Answers

28. Semicircle
Perimeter in cm = 20.57 (2 decimal places) (3 marks)

Q 28 was in my paper too (moduar)

I stupidly forgot to divide by 2, as i was really focused on adding 8 which i did not do on a previous perimeter question in the non-calc.

Would i get dropped all marks or 2 ??

thanks in advance .

(Original post by High As A Kite)
Q 28 was in my paper too (moduar)

I stupidly forgot to divide by 2, as i was really focused on adding 8 which i did not do on a previous perimeter question in the non-calc.

Would i get dropped all marks or 2 ??

thanks in advance .

no you will lose one mark there

bumping this again as I keep being asked for it but it keeps slipping off the front page