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For Edexcel

GCSE Mathematics

Foundation Tier

Paper 2B (Calculator)

Marking Guide

Method marks (M) are awarded for knowing and using a correct method

!ccurac" marks (!) are awarded for correct answers# ha$ing used a correct

method

(B) marks are independent of method marks

(C) marks are for communication

%ritten &" 'haun !rmstrong

nl" to &e copied for use in the purchasers school or college

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Foundation Tier Paper 2B Marking Guide

1 18 adults = 360 so 1 adult = 360 18 = 20 M1poor or terrible = 140 + 60 = 200number = 200 20 = 10 M1 A1 Total 3

2 (a) = 1

= 20! M1 A1

(b) 2 " 6p = #1$30total spent = #2$30 M1mone% le&t = ' 2$30 = #2$0 A1 Total 4

3 3

Total 3

4 (a) (i) 42 1

(ii) opposite an*les 1

(b) (i) = 180 ' 42 = 138 1

(ii) an*les on a strai*t line total 180 1

(,) = 360 ' (16 + -0) M1= 360 ' 2 = 10 A1 Total 6

5 (a) 1

2*+2 EFB Paper 2 marks Page 2 , Churchill Maths -imited

,ertain

e.ens

unli/el%

impossible

li/el%

Te bead

,osen is red

Te bead ,osen

is not blue

Te bead ,osen

is *reen

Te bead ,osenis %ello

5/24/2018 2012 Edexcel Foundation B Paper 2 Mark Scheme

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(b) e$*$ 1

(,) 1

Total 3

6 (a) 36 1

(b) e$*$ 1

(,) 2 1

(d) 1 2 4 8 16 2 Total

7 (a) 2$428--16 1

(b) 4$82 1

(,) = -$-34$$$ = -$- (1dp) M1 A1 Total 4

8 (a) 2

(b) 1

Total 3

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9 (a) 1

(b) and 1

(,) 1

(d) A5 13 = 0$38 M15 1- = 0$368 A15 3 14 = 0$2145 2 16 = 0$12A sent te i*est proportion o& uniors 1 Total 6

[ clear evidence of valid comparison A and B, at least appropriate comment re. C and Dand consistent conclusion ]

10 (a) in,rease = 810 ' 600 = 210

! in,rease =210

600" 100! M1

= 3! A1

(b) 3 + 2 = 30 = 6 M13 " 6 = 18 A1 Total 4

11 (a) p= 1

(b) x= 3 1

(,) 4w= 1 ' 3 = 48 M1w= 48 4 = 12 A1 Total 4

12 (a) 7rap 1

(b) 7rap 1

(,) 7rap A 1 Total 3

13 (a) 4

10 =

2

9 1

(b) 30! 1

(,) 0$3 + 0$4 = 0$1 ' 0$ = 0$3 M10$3 2 = 0$1 M1 A1 Total

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14 (a) must be at :e,astle station b% 12$30 M1must be at illin*am station b% 10$8 A1

(b) ill be in :e,astle at 11$ill *et to ba,/ to :e,astle station b% 14$30 M1ill *et 14$0 train

time in :e,astle = mins + 2 rs 0 mins= 2 ours minutes A1 Total 4

15 * (a) e$*$ An% ;uadrilateral ,an be split into to trian*les$Te an*les in a trian*le total 180 so te an*lesin a ;uadrilateral total 2 " 180 = 360 2

[ valid explanation expressed clearly ]

(b) (i) e$*$

1

(ii) e$*$

1

Total 4

*16 0$ " 44$4- = #33$3 M1

0$- " 21$0 = #1-$3total = 33$3 + 1-$3 = #2$2 M1 A1e ,an

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18 (a)

e$*$ it

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21 >ete