Cambridge IGCSE Mathematics (9-1) 0980 — 2020 May/June Paper 1 · Variant 2

This document has 12 pages. Blank pages are indicated. DC (LK) 198357 © UCLES 2020 [Turn over * 4 4 5 3 2 4 0 3 3 9 * MATHEMATICS 0980/12 Paper 1 (Core) May/June 2020 1 hour You must answer on the question paper. You will need: Geometrical instruments INSTRUCTIONS ● Answer all questions. ● Use a black or dark blue pen. You may use an HB pencil for any diagrams or graphs. ● Write your name, centre number and candidate number in the boxes at the top of the page. ● Write your answer to each question in the space provided. ● Do not use an erasable pen or correction fluid. ● Do not write on any bar codes. ● You should use a calculator where appropriate. ● You may use tracing paper. ● You must show all necessary working clearly. ● Give non-exact numerical answers correct to 3 significant figures, or 1 decimal place for angles in degrees, unless a different level of accuracy is specified in the question. ● For r, use either your calculator value or 3.142. INFORMATION ● The total mark for this paper is 56. ● The number of marks for each question or part question is shown in brackets [ ]. Cambridge IGCSE™(9–1)

2 0980/12/M/J/20 © UCLES 2020 1 (a) Write in figures the number fifty‑three thousand and thirty‑five. … [1] (b) Write 8379 correct to the nearest hundred. … [1] 2 (a) Write down the mathematical name for this type of angle. … [1] (b) A B NOT TO SCALE O A and B lie on a circle, centre O. (i) Write down the mathematical name for line AB. … [1] (ii) OA 8cm = Write down the length of the diameter of this circle. … cm [1] 3 Write down the reciprocal of 10. … [1]

3 0980/12/M/J/20 © UCLES 2020 [Turn over 4 (a) Find the value of 196. … [1] (b) Calculate 153. … [1] 5 Put one pair of brackets in each statement to make it correct. (a) 16 ' 8 + 4 # 2 = 1 [1] (b) 16 ' 8 + 4 # 2 = 12 [1] 6 The 840 students in a school are asked if they want a change of school uniform. The results are shown in the pie chart. 175° 71° 114° Yes No Do not know Show that the number of students who said Yes is 266. [1]

4 0980/12/M/J/20 © UCLES 2020 7 Change 5.3 kilometres into metres. … m [1] 8 The scale drawing shows the positions of town A and town B. The scale is 1 cm represents 12 kilometres. A B Scale: 1 cm to 12 km (a) Find the actual distance between town A and town B. … km [2] (b) Town C is 72 km from town A and 96 km from town B. On the scale drawing, construct the position of town C. [3]

5 0980/12/M/J/20 © UCLES 2020 [Turn over 9 Write down the order of rotational symmetry of the diagram. … [1] 10 North North NOT TO SCALE A B The bearing of B from A is 105°. Find the bearing of A from B. … [2] 11 Write down (a) a square number greater than 10, … [1] (b) an irrational number. … [1]

6 0980/12/M/J/20 © UCLES 2020 12 – 4 – 4 – 3 – 2 – 1 1 0 2 3 4 – 3 – 2 – 1 1 2 3 4 A B C x y Points A, B and C are shown on the grid. (a) Write down the coordinates of point C. ( … , … ) [1] (b) On the grid, plot point D so that ABCD is a parallelogram. [1] (c) On the grid, plot point E so that EA 4 3 = - e o. [2] 13 The height, h metres, of a tower is 76.3 m, correct to 1 decimal place. Complete this statement about the value of h. … h 1 G … [2]

7 0980/12/M/J/20 © UCLES 2020 [Turn over 14 Rovers, United and City are football teams. Rovers scored x goals. United scored 8 goals more than Rovers. City scored 3 goals less than twice the number of goals scored by Rovers. The three teams scored a total of 117 goals. Write down and solve an equation to find the value of x. x = … [4] 15 11 cm 7 cm NOT TO SCALE 5 cm Calculate the area of the trapezium. … cm2 [2]

8 0980/12/M/J/20 © UCLES 2020 16 (a) A B On the Venn diagram, shade the region A B + . [1] (b)  = {1, 2, 3, 4, 5, 6} P = {x : x is an even number} Q = {x : x is a prime number} P Q Complete the Venn diagram. [2] 17 Write 2 4 - as a decimal. … [1]

9 0980/12/M/J/20 © UCLES 2020 [Turn over 18 Without using a calculator, work out 1 4 3 12 11 - . You must show all your working and give your answer as a fraction in its simplest form. … [3] 19 Roberto buys a toy for $5.00 . He then sells it for $4.60 . Calculate his percentage loss. … % [2] 20 Simplify t t 8 4 8 4 ' . … [2]

10 0980/12/M/J/20 © UCLES 2020 21 (a) Write 45 000 in standard form. … [1] (b) Write .2 06 10 2 # - as an ordinary number. … [1] 22 (a) Write down all the factors of 28. … [2] (b) Write 54 as a product of its prime factors. … [2] (c) Find the lowest common multiple (LCM) of 48 and 60. … [2]

11 0980/12/M/J/20 © UCLES 2020 23 – 2 – 4 – 2 0 2 4 6 8 10 12 – 1 1 2 3 4 5 6 x y L (a) Find the gradient of line L. … [2] (b) Write down the equation of line L in the form y mx c = + . y = … [1]

12 0980/12/M/J/20 © UCLES 2020 Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity. To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge Assessment International Education Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download at www.cambridgeinternational.org after the live examination series. Cambridge Assessment International Education is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of the University of Cambridge Local Examinations Syndicate (UCLES), which itself is a department of the University of Cambridge. BLANK PAGE

This document consists of 6 printed pages. © UCLES 2020 [Turn over Cambridge IGCSE™ (9–1) MATHEMATICS 0980/12 Paper 1 (Core) May/June 2020 MARK SCHEME Maximum Mark: 56 Published Students did not sit exam papers in the June 2020 series due to the Covid-19 global pandemic. This mark scheme is published to support teachers and students and should be read together with the question paper. It shows the requirements of the exam. The answer column of the mark scheme shows the proposed basis on which Examiners would award marks for this exam. Where appropriate, this column also provides the most likely acceptable alternative responses expected from students. Examiners usually review the mark scheme after they have seen student responses and update the mark scheme if appropriate. In the June series, Examiners were unable to consider the acceptability of alternative responses, as there were no student responses to consider. Mark schemes should usually be read together with the Principal Examiner Report for Teachers. However, because students did not sit exam papers, there is no Principal Examiner Report for Teachers for the June 2020 series. Cambridge International will not enter into discussions about these mark schemes. Cambridge International is publishing the mark schemes for the June 2020 series for most Cambridge IGCSE™ and Cambridge International A & AS Level components, and some Cambridge O Level components.

0980/12 Cambridge IGCSE (9–1) – Mark Scheme PUBLISHED May/June 2020 © UCLES 2020 Page 2 of 6 Generic Marking Principles These general marking principles must be applied by all examiners when marking candidate answers. They should be applied alongside the specific content of the mark scheme or generic level descriptors for a question. Each question paper and mark scheme will also comply with these marking principles. GENERIC MARKING PRINCIPLE 1: Marks must be awarded in line with: • the specific content of the mark scheme or the generic level descriptors for the question • the specific skills defined in the mark scheme or in the generic level descriptors for the question • the standard of response required by a candidate as exemplified by the standardisation scripts. GENERIC MARKING PRINCIPLE 2: Marks awarded are always whole marks (not half marks, or other fractions). GENERIC MARKING PRINCIPLE 3: Marks must be awarded positively: • marks are awarded for correct/valid answers, as defined in the mark scheme. However, credit is given for valid answers which go beyond the scope of the syllabus and mark scheme, referring to your Team Leader as appropriate • marks are awarded when candidates clearly demonstrate what they know and can do • marks are not deducted for errors • marks are not deducted for omissions • answers should only be judged on the quality of spelling, punctuation and grammar when these features are specifically assessed by the question as indicated by the mark scheme. The meaning, however, should be unambiguous. GENERIC MARKING PRINCIPLE 4: Rules must be applied consistently e.g. in situations where candidates have not followed instructions or in the application of generic level descriptors. GENERIC MARKING PRINCIPLE 5: Marks should be awarded using the full range of marks defined in the mark scheme for the question (however; the use of the full mark range may be limited according to the quality of the candidate responses seen). GENERIC MARKING PRINCIPLE 6: Marks awarded are based solely on the requirements as defined in the mark scheme. Marks should not be awarded with grade thresholds or grade descriptors in mind.

0980/12 Cambridge IGCSE (9–1) – Mark Scheme PUBLISHED May/June 2020 © UCLES 2020 Page 3 of 6 Maths-Specific Marking Principles 1 Unless a particular method has been specified in the question, full marks may be awarded for any correct method. However, if a calculation is required then no marks will be awarded for a scale drawing. 2 Unless specified in the question, answers may be given as fractions, decimals or in standard form. Ignore superfluous zeros, provided that the degree of accuracy is not affected. 3 Allow alternative conventions for notation if used consistently throughout the paper, e.g. commas being used as decimal points. 4 Unless otherwise indicated, marks once gained cannot subsequently be lost, e.g. wrong working following a correct form of answer is ignored (isw). 5 Where a candidate has misread a number in the question and used that value consistently throughout, provided that number does not alter the difficulty or the method required, award all marks earned and deduct just 1 mark for the misread. 6 Recovery within working is allowed, e.g. a notation error in the working where the following line of working makes the candidate’s intent clear.

0980/12 Cambridge IGCSE (9–1) – Mark Scheme PUBLISHED May/June 2020 © UCLES 2020 Page 4 of 6 Abbreviations cao correct answer only dep dependent FT follow through after error isw ignore subsequent working oe or equivalent SC Special Case nfww not from wrong working soi seen or implied Question Answer Marks Partial Marks 1(a) 53 035 1 1(b) 8400 1 2(a) Acute 1 2(b)(i) Chord 1 2(b)(ii) 16 1 3 1 10 1 4(a) 14 1 4(b) 3375 1 5(a) 16 ÷ (8 + 4 × 2) = 1 1 5(b) (16 ÷ 8 + 4) × 2 = 12 1 6 114 840 360 × 1 7 5300 1 8(a) 108 2 B1 for 9 cm 8(b) Accurate position of town C with arcs 3 B2 for accurate position of town C without arcs or two arcs, one accurate or B1 for 6 and 8 soi 9 2 1 10 285 2 M1 for 180 + 105 or 75 or 105 seen in correct position at B 11(a) Any square number greater than 10 1 11(b) Any irrational number 1 12(a) (3, 1) 1

0980/12 Cambridge IGCSE (9–1) – Mark Scheme PUBLISHED May/June 2020 © UCLES 2020 Page 5 of 6 Question Answer Marks Partial Marks 12(b) D plotted at (–2, –1) 1 12(c) E plotted at (1, –2) 2 B1 for E plotted at (1, k) or (k, –2) or AE = 4 3     −   13 76.25 76.35 2 B1 for each or both correct and reversed 14 x + x + 8 + 2x – 3 = 117 or better M2 or B1 for x + 8 or 2x – 3 4x + 5 = 117 oe or better M1 28 A1 If 0 scored, SC1 for the correct answer with no algebra 15 45 2 M1 for 11 7 2 + × 5 oe 16(a) Intersection shaded 1 16(b) 2 B1 for four or five numbers in the correct place 17 0.0625 1 18 7 4 9 12 B1 21 12 2 1 12 − M1 5 6 5 6 A1 19 8 2 M1 for 5 4.60 5 − [×100] or 4.60 100 5 × 20 2t4 2 B1 for 2tn or kt4 (n,k ≠ 0) 21(a) 4.5 × 104 1 21(b) 0.0206 1 22(a) 1 2 4 7 14 28 2 B1 for 4 or 5 correct with no extras or 6 correct with one extra 22(b) 2 × 3 × 3 × 3 or 2 × 33 2 M1 for 2, 3, 3, 3 or correct factor tree

0980/12 Cambridge IGCSE (9–1) – Mark Scheme PUBLISHED May/June 2020 © UCLES 2020 Page 6 of 6 Question Answer Marks Partial Marks 22(c) 240 2 M1 for 48 = 2, 2, 2, 2, 3 or 60 = 2, 2, 3, 5 or list of multiples of both 48 and 60, at least 3 of each or B1 for 240k 23(a) 3 2 M1 for 3 1 k k 23(b) y = 3x – 2 oe 1 FT their (a)