San Ġorġ Preca College Secondary School, Blata l-Bajda Half-Yearly Examinations - February 2015 Subject: Mathematics Main Paper Name & Surname: Form: 2 _________________________ Teacher: Question Level 6-7 Class: Time:1 hr 30 minutes _____ Index No: ______ _________________________ 1 2 3 4 5 6 7 8 9 10 11 12 Non Calculator Main Total Mark Instructions to Candidates Answer all questions. This paper carries 75 marks Calculators and mathematical instruments are allowed but all necessary working must be shown. 1) Round the following numbers correct to 1 decimal place a) 9.035 Answer: _________ b) 6.12 Answer: _________ c) 54.86 Answer: _________ d) Estimate the value of 9.047×6.23 8.57 Answer: ________ (4 marks) Mathematics Main Paper Form 2-L 6 to 7- Half Yearly 2015 Page 1 of 10 2) a) Write ⅜ as a decimal. Show all necessary working. Answer: ___________ b) Write 1 5 6 as a recurring decimal. Show all necessary working. Answer: ___________ c) Write these decimals in order, biggest first: 0.0537, 0.055278, 0.000567, 0.05921, 0.5824 Answer: ___________, ___________, ___________, ____________, __________ d) Use calculator to work out 13.4 ÷ 2.98, giving answer correct to 2 decimal places. Answer: ___________ (8 marks) 3) a) Underline the expression which is not equal to 𝟓𝒂 i) 𝑎+𝑎+𝑎+𝑎+𝑎 ii) 5 × 𝑎 iii) 𝑎 × 𝑎 × 𝑎 × 𝑎 × 𝑎 b) Simplify 5𝑏 − 3 + 2𝑏 − 4 Answer: __________ Mathematics Main Paper Form 2-L 6 to 7- Half Yearly 2015 Page 2 of 10 c) Expand the brackets 4(2𝑥 − 1) Answer:__________ d) Find the value of 3𝑎 + 2𝑏 when 𝑎 = 3 and 𝑏 = −3 Answer: ________ (7 marks) 4) a) b a 65 20 20 Find the missing angles angle a = ______0 Reason : (___________________________________________) angle b= ______ Reason : (___________________________________________) b) Write down the perimeter of this shape. Simplify your answer. x y 2x 3x Answer: ________ (6marks) ___________________________________________________________________________ Mathematics Main Paper Form 2-L 6 to 7- Half Yearly 2015 Page 3 of 10 5. a) d a b c From the diagram, i) Choose 2 vertically opposite angles. Answer : ______ and _______ ii) Choose 2 alternate angles. Answer: ______ and _______ iii) Choose 2 corresponding angles. Answer: _______ and _______ b) b 50 100 a Find the missing angles, giving reasons for your answer angle a =___________0 Reason :________________________________ angle b=____________0 Reason: _________________________________ (7 marks) Mathematics Main Paper Form 2-L 6 to 7- Half Yearly 2015 Page 4 of 10 1 6) A man decided to share his land between his three children. He gave of his land to his 5 1 eldest son and 2 to the second. a) What fraction of the land did the youngest get? Answer:________ b) Change the answer in part a) into a decimal. Answer: _______ (5 marks) 7) a) Write the following fractions in ascending order 1 9 2 2 20 5 Answer: _____, _____, ____ b) Work out the following i) 2 3 + 1 5 Answer: ______ (iii) 3 5 5 2 6 3 ii) − Answer: _______ of 60 Answer: _______ 1 9 c) Write a fraction between 2 and 10 Answer: _______ (10 marks) Mathematics Main Paper Form 2-L 6 to 7- Half Yearly 2015 Page 5 of 10 8. a) Complete the scale on the y-axis. y 6 A -6 -5 -4 -3 C -2 -1 0 1 2 3 4 5 6 x -5 b) Write the co-ordinates of the points marked with the letter A ( _____, _____ ) and C ( ____, ____ ) c) On the grid plot point B with co-ordinates ( 0, 4) d) Plot a point D on the grid such that quadrilateral ABCD will form a kite. e) Write the co-ordinates of point D ( ____, ____ ) (6 marks) Mathematics Main Paper Form 2-L 6 to 7- Half Yearly 2015 Page 6 of 10 9. a) The shape in the grid below is called a ___________________. b) Does the shape have rotational symmetry? Answer: ____________ c) Name one property of this quadrilateral. _______________________________________________________________________ d) Make a tessellation using this shape. (Draw at least 6 more shapes) (4 marks) Mathematics Main Paper Form 2-L 6 to 7- Half Yearly 2015 Page 7 of 10 10. John makes the scale drawing of a field. A E A Scale A D B 1cm : 3m C a) Measure the length BC. Answer: ______cm b) The real length of BC to the nearest metre is _______m. c) John wants to draw another scale drawing to show a plot of land using the same scale. If the real length of a side of the field is 45 m, calculate the length on the scale drawing that represents this side of 45m. Answer:__________cm (5 marks) Mathematics Main Paper Form 2-L 6 to 7- Half Yearly 2015 Page 8 of 10 11. Work out this question using ruler and compasses only, showing all construction lines. a) Construct an angle of 90 at point A. b) Construct an angle of 60 at point B. c) Let C be the point of intersection to form triangle ABC. Measure side BC to the nearest mm. A B Answer: _______mm (5 marks) Mathematics Main Paper Form 2-L 6 to 7- Half Yearly 2015 Page 9 of 10 12. a) Complete the table for the straight line graph 𝑦 = 3𝑥 − 1 𝑥 3𝑥 -1 𝑦 -2 -6 -1 -7 -1 -1 0 0 -1 -1 1 3 -1 2 2 3 9 -1 8 b) Draw the graph of 𝑦 = 3𝑥 − 1 in the grid below. y 0 x c) Use your graph to find the value of 𝑦 when 𝑥 = 1.5 (8 marks) END OF PAPER Mathematics Main Paper Form 2-L 6 to 7- Half Yearly 2015 Page 10 of 10