Worksheet 2: Tick or Trash
Question 1
Student B is correct. Student A has failed to identify two appropriate rectangles.
Question 2
Student A is correct. Student B has wrongly calculated ( x 5.1)^{2} and has given the wrong units in the answer.
Worksheet 3: Exam Practice Questions
This is a selection of past exam questions from Edexcel, targeted at the middle ability range. You can use the sequence as it stands or select individual questions to suit your needs.
Below is the mark scheme for each question, which may help you to see how marks are allocated and what the examiner is especially looking for. The mark schemes use the following abbreviations:
oe 
or equivalent 
cao 
correct answer only 
ft 
followthrough marks 
dep 
dependent 
indep 
independent 
M 
method marks 
A 
accuracy marks 
B 
benefitofdoubt mark 
SC 
special case 
Question 1
(a) p x 12 = 37.7cm
(b) 
12 x 
130 
; 



100 



12 + 
12 x 
130 
= 15.6cm 



100 


Question 2
(a) For example, 2.23m can be measured: p normally give to 2 decimal places
(b) 1st is too accurate: cannot be measured. 2nd is not accurate: not near enough to 7m

Question 3
(a) 40 + 40 + 50 + 70 = 200
(b) i) 40 x 40 = 1600m^{2}
ii) (40 x 30) ÷ 2 = 600m^{2}

Question 4
(a) Radius is 2.8cm. 2.8 x 10 = 28km
(b) x '(a)'^{2} = 2463 km^{2}

Question 5
A = r^{2} = x 35 x 35 = 3846.5 (if = 3.14), 3850 (if = 22 ÷ 7), 3848.4 (if = button)
70 x 70 = (4900) '4900'  '3850'
A = 1050cm^{2}

Question 6
(a) Trapezium
(b) 5.3 x 1.2 + ½ x 0.9 x 5.3
OR ½ (1.2 + 2.1) x 5.3
Area = 8.745 m^{2}

Question 7
(a) x 0.65 x 0.65 = 1.33m^{2}
(b) D = 5 ÷ = 1.59m

Question 8
(a) 4 + 4 + 2 + 1 = 11cm^{2}
(b) i) 0.5 x x 10 (= 15.7…)
'15.7…' + 10 = 25.7cm
ii) 0.5 x x 5 x 5 = 39.3cm^{2}
Notes:
(a) M1 for splitting shape
A1 cao for 11
(b) M1 for 0.5 x p x 10 or 15.7 seen
M1 (dep) for + 10
A1 cao for 25.7 or better
M1 for 0.5 x ^{p} x 5 x 5
A1 cao for 39.3 or better

Question 9
Various methods
Answer = 37m^{2}
Notes:
M1 division into rectangles or square tiles (could be implied from working, or shown on the diagram)
M1 l x b (at least once, or implied from working)
Eg for M2 sight of 10, 27 or 25, 12 if shape not shown divided
A1 37 cao
B1 (indep) for m^{2}

Question 10
(Area of circle =) 10^{2} (oe)
= 100p (oe)
(Area of triangle =) ½ x 12 x 16
= 96
(Shaded area =) 10^{2}  (½ x 12 x 16)
Answer = 218cm^{2}
Notes:
M1
A1 cao (accept 314 or better)
M1 (implied if later work correct)
A1 cao
M1 dep on at least one of the two previous M1's gained.
A1 cao (accept uncorrected)