C1.3· 74 questions · 173 marks · 208 min · 2004–2025· Structured questions
Every Cambridge IGCSE Mathematics Paper 1 question on powers and roots, laid out as 23 A4 pages with the mark scheme below. Nothing is left out. Free to read, no account.
![Question 1: When x = 5 find the value of (a) 4x2, Answer(a) [1] (b) (4x)2. Answer(b) [1]](https://img.pastlit.com/crops/44d13a35-d287-4292-aed4-91e4d89260b0/q4.webp)
![Question 2: = < > Use one of the above symbols to complete each of the statements in the answer spaces. Answer(a) 23 32 [1] Answer(b) 9 % 0.09 [1]](https://img.pastlit.com/crops/44d13a35-d287-4292-aed4-91e4d89260b0/q11.webp)
![Question 3: Work out 4-3 as a fraction. Answer [2]](https://img.pastlit.com/crops/49b7271c-c9d0-442e-8467-d3c89b05b93f/q5.webp)
1 / 23![Question 5: Work out 433 , giving (a) your full calculator display, Answer(a) [1] (b) your answer correct to the nearest thousand. Answer(b) [1]](https://img.pastlit.com/crops/1de5a75f-f1cc-453c-bf73-80412ef3629e/q9.webp)
2 / 23![Question 7: x is an integer between 60 and 90. For Examiner's Write down the value of x when it is Use (a) an odd square number, Answer(a) x = [1] (b) …](https://img.pastlit.com/crops/2cd2f0a6-59d7-4645-88e0-286e35b9db74/q14.webp)
3 / 23![Question 9: (a) Find the value of p when p3 = −27. For Examiner's Use Answer(a) p = [1] −1 1 (b) Find the value of q when q = . 6 Answer(b) q = [1] (c)…](https://img.pastlit.com/crops/a29f599b-ff9f-4efe-beab-70aa7cfb16c3/q14.webp)
![Question 10: Write down the value of (a) 10-2, Answer(a) [1] (b) 40, Answer(b) [1] (c) 3 343 . Answer(c) [1]](https://img.pastlit.com/crops/6cd54baa-d384-4671-a807-d00f83ca294d/q12.webp)
4 / 23![Question 12: Using integers between 10 and 30, write down (a) an odd multiple of 7, Answer(a) [1] (b) a cube number. Answer(b) [1]](https://img.pastlit.com/crops/311704b6-970a-4239-84fa-d2e4c31bc8ce/q9.webp)
![Question 13: Find the cube root of 96. Give your answer correct to 2 decimal places. Answer [2]](https://img.pastlit.com/crops/92d3a1af-3354-4cb2-9002-c81ebe2f6855/q6.webp)
![Question 14: 210 211 212 213 214 215 216 For Examiner's From the list of numbers, find Use (a) a prime number, Answer(a) [1] (b) a cube number. Answer(b…](https://img.pastlit.com/crops/db9304cc-8ebd-4189-a5ab-637b60ced984/q8.webp)
5 / 23![Question 16: (a) Write down the next prime number after 47. Answer(a) [1] (b) Write down the next square number after 49. Answer(b) [1]](https://img.pastlit.com/crops/048bece3-cca0-4145-876a-d9c9edd8ad59/q4.webp)
![Question 17: I K = For Examiner's Choose one of these symbols to make each statement correct. Use (a) −15 −5 [1] (b) (−5)2 25 [1]](https://img.pastlit.com/crops/048bece3-cca0-4145-876a-d9c9edd8ad59/q5.webp)
6 / 23![Question 19: 100 164 200 343 999 Write down the cube number from this list. Answer ............................................... [1] _________________…](https://img.pastlit.com/crops/a6c50ea4-c874-4188-b3df-cdeee68911d1/q2.webp)
![Question 20: Find the value of 1.473. Give your answer correct to 3 decimal places. Answer ............................................... [2] _________…](https://img.pastlit.com/crops/37add66c-a8cc-4828-94a7-06d7a3c5d84c/q2.webp)
![Question 21: Find the value of (a) 94, Answer(a) ............................................... [1] (b) 60. Answer(b) .................................…](https://img.pastlit.com/crops/8f8321ec-4bb3-4681-9369-66242019f1f6/q11.webp)
7 / 23![Question 23: (a) Find the value of 5x2 when x = –4. Answer(a) ................................................ [2] (b) Make x the subject of the formula…](https://img.pastlit.com/crops/48182f3f-1f1c-4d7e-8344-1bacb49e1242/q21.webp)
8 / 23
9 / 23![Question 27: Calculate. (a) 3.2 × (5.7 – 1.3) + 4.8 Answer(a) ................................................ [1] (b) 2.54 - 0.85 Answer(b) ...........…](https://img.pastlit.com/crops/e750ec9a-ee37-46c2-b89d-578bcbe1eb55/q5.webp)
![Question 28: (a) Solve. 3x 2 = 108 Answer(a) x = .................................................. [1] (b) w 6 # w k = w 18 Find the value of k. Answer…](https://img.pastlit.com/crops/94a0ff97-3161-41c1-a182-638f9d5b7fb2/q11.webp)
10 / 23![Question 30: Find the cube root of 4913. .................................................. [1]](https://img.pastlit.com/crops/21169036-4e1d-4ee8-bdff-d6a1824ab661/q3.webp)
![Question 31: Calculate. 4 (a) of 90 5 ................................................. [1] 7.1 # 4 .8 (b) 15.3 - 9.62 .................................…](https://img.pastlit.com/crops/94bef9d0-0bae-478e-9db7-b48ded8dc376/q14.webp)
![Question 32: V = 4p2 Find V when p = 3. V = ................................................[1]](https://img.pastlit.com/crops/c854d9b8-7ad8-4fea-ad4c-cf4b3b6aea74/q3.webp)
11 / 23![Question 34: Write, as a decimal, the value of 5-3. .............................................. [1]](https://img.pastlit.com/crops/fc616d19-b8e3-4845-a032-f25b1b6e7b50/q2.webp)
![Question 35: 512 16 Work out 2 . 6 Write your answer as a fraction in its lowest terms. .............................................. [2]](https://img.pastlit.com/crops/fc616d19-b8e3-4845-a032-f25b1b6e7b50/q16.webp)
![Question 36: Calculate 120 + 3.8 2 - 25 . ................................................. [1]](https://img.pastlit.com/crops/94f90766-e44d-4cd3-8161-662b7262201e/q3.webp)
![Question 37: Find the value of (a) 173, ................................................... [1] (b) 3 729 . ............................................…](https://img.pastlit.com/crops/ae3bd608-1422-428e-a09a-fcfd571352e3/q8.webp)
12 / 23![Question 39: Work out the value of 4 - 2 . ................................................... [1]](https://img.pastlit.com/crops/ddfe8510-b93d-4d50-b8a0-3e123e9c8c13/q5.webp)
![Question 40: Calculate. (a) .413 ................................................ [1] (b) - 4 - 5 2 - 2 # 4 # - 3 ^ h ..................................…](https://img.pastlit.com/crops/0fee0350-e4f1-477c-8455-a6924583aded/q16.webp)
13 / 23![Question 42: Find the value of (a) 242, .................................................... [1] (b) 3 2197 . ..........................................…](https://img.pastlit.com/crops/77d72e58-0bad-4fe6-876c-ed46e072109a/q4.webp)
![Question 43: Find the value of (a) 60 + 62, .................................................... [1] (b) 5-4. ..........................................…](https://img.pastlit.com/crops/77d72e58-0bad-4fe6-876c-ed46e072109a/q13.webp)
14 / 23![Question 45: (a) Find the value of 196. ................................................. [1] (b) Calculate 153. .......................................…](https://img.pastlit.com/crops/8745ad0e-fb4c-4184-a200-74fee3021253/q4.webp)
![Question 46: Calculate. 1 - 82 .001 ................................................. [1]](https://img.pastlit.com/crops/7cfddb8b-1aeb-47f4-add9-6d026a7942ec/q4.webp)
![Question 47: 29 A = bc 4 Calculate the value of A when b = 3 and c = 6 . ................................................. [2]](https://img.pastlit.com/crops/1538206f-0c46-4671-9f58-0a478195cf0f/q9.webp)
15 / 23![Question 49: Calculate. 4 .00025 ................................................. [1]](https://img.pastlit.com/crops/956c3ddc-71e6-4290-9e2d-d54d8933b6b6/q8.webp)
![Question 50: Calculate the value of .729 . ................................................. [1]](https://img.pastlit.com/crops/c834804e-4077-4bf9-9079-ffe9dda9ae6c/q3.webp)
![Question 51: (a) Find the value of 225. ................................................. [1] 2 (b) Write down the reciprocal of . 3 ...................…](https://img.pastlit.com/crops/8ef65576-95ba-4a5e-bc6c-05737fe9e2c1/q2.webp)
16 / 23![Question 53: 12 18 29 49 91 125 From the list of numbers, write down (a) a cube number, ..................................................... [1] (b) a …](https://img.pastlit.com/crops/e47f3805-d13e-4095-8d11-dbebb00ad824/q9.webp)
![Question 54: Find the value of 345.96. ................................................. [1]](https://img.pastlit.com/crops/3b4e80a8-f4a1-46e5-bb8d-a9eb16a1aefd/q2.webp)
![Question 55: Work out 5 # 62 . Give your answer correct to 2 decimal places. ................................................. [2]](https://img.pastlit.com/crops/e4f35e16-bd14-402b-9780-a20b03e66f6a/q10.webp)
17 / 23![Question 57: Calculate 4 5 - 5 4 . ................................................. [1]](https://img.pastlit.com/crops/6c8b689c-7c7f-43c2-9bd7-5f565c907d22/q9.webp)
![Question 58: (a) Find the value of 68 # 153 . ................................................. [1] 3 (b) Find the value of 6789 1. Give your answer cor…](https://img.pastlit.com/crops/292a3296-31da-41d3-a09d-2c03186a3b79/q13.webp)
![Question 59: mk 37 Work out the value of when m = 4 and k = 7 . 3 ................................................. [2]](https://img.pastlit.com/crops/ff614652-0cec-4230-a5a6-a2b28e458d4c/q7.webp)
18 / 23![Question 61: 120 121 149 164 216 From this list, write down (a) a square number, ................................................. [1] (b) a cube number…](https://img.pastlit.com/crops/584bb21c-f14f-4658-8c38-078ecad6cd0f/q3.webp)
19 / 23![Question 63: Calculate 5.76 + 2.83 . ................................................. [1]](https://img.pastlit.com/crops/e61c3206-1c8c-48f9-8834-4cc244a2c6a2/q8.webp)
![Question 64: Calculate. (a) 3 343 - 40.96 ................................................. [1] (b) (192 + 4 # 16 ) .125 ...............................…](https://img.pastlit.com/crops/b99c3f8e-1e15-4a06-a0c3-2e94c5f2da3e/q19.webp)
![Question 65: 61 62 63 64 65 66 67 68 69 From the list of numbers, write down (a) a cube number ................................................. [1] (b)…](https://img.pastlit.com/crops/101ad8c6-cc93-4c30-bd84-36d4d055a684/q8.webp)
20 / 23![Question 67: A = 2 3 # 3 B = 3 2 # 5 (a) Find the highest common factor (HCF) of A and B. ................................................. [1] (b) Find…](https://img.pastlit.com/crops/09933610-506d-4873-b380-845cef6fe8e4/q22.webp)
![Question 68: Write down the value of (a) 36 ................................................. [1] (b) 103. .............................................…](https://img.pastlit.com/crops/6e6c5d64-d8fd-49b3-b317-d2f57eab5def/q3.webp)
21 / 23![Question 70: (a) Write down 169 . ................................................. [1] (b) Work out the value of 24. ..................................…](https://img.pastlit.com/crops/2b367ce3-e0fb-4252-82eb-f271acd9f535/q3.webp)
22 / 23![Question 72: (a) Write down the value of 144. ................................................. [1] (b) Work out the value of 53. ......................…](https://img.pastlit.com/crops/34e158b4-e899-4b2a-919d-ca7fd818f4c2/q4.webp)

23 / 23Answers below. Sit the paper first if you are practising.
Pastlit
Mathematics 0580 · Powers and roots — Paper 1
IGCSE · topical answer key — answer key (teacher use)
Question
Answer
Marks
2
2
2
2
2
2
4
4
4
3
2
2
2
2
2
2
2
5
1
2
2
3
4
5
4
5
2
2
3
1
3
1
2
1
2
1
2
1
1
4
2
2
2
4
2
1
2
2
1
1
4
1
2
1
2
5
1
3
2
1
2
4
1
2
2
3
3
2
2
5
2
2
2
2| Question | Answer | Marks | From |
|---|---|---|---|
| 1 | see sheet | 2 | 0580/11 Oct/Nov 2004 |
| 2 | see sheet | 2 | 0580/11 Oct/Nov 2004 |
| 3 | see sheet | 2 | 0580/11 May/June 2005 |
| 4 | see sheet | 2 | 0580/11 May/June 2005 |
| 5 | see sheet | 2 | 0580/11 Oct/Nov 2006 |
| 6 | see sheet | 2 | 0580/11 Oct/Nov 2008 |
| 7 | see sheet | 4 | 0580/11 May/June 2009 |
| 8 | see sheet | 4 | 0580/11 Oct/Nov 2009 |
| 9 | see sheet | 4 | 0580/12 Oct/Nov 2009 |
| 10 | see sheet | 3 | 0580/11 May/June 2010 |
| 11 | see sheet | 2 | 0580/13 Oct/Nov 2010 |
| 12 | see sheet | 2 | 0580/13 May/June 2011 |
| 13 | see sheet | 2 | 0580/12 Oct/Nov 2011 |
| 14 | see sheet | 2 | 0580/13 Oct/Nov 2011 |
| 15 | see sheet | 2 | 0580/13 Oct/Nov 2011 |
| 16 | see sheet | 2 | 0580/13 May/June 2012 |
| 17 | see sheet | 2 | 0580/13 May/June 2012 |
| 18 | see sheet | 5 | 0580/11 May/June 2013 |
| 19 | see sheet | 1 | 0580/12 May/June 2013 |
| 20 | see sheet | 2 | 0580/13 May/June 2013 |
| 21 | see sheet | 2 | 0580/11 Oct/Nov 2013 |
| 22 | see sheet | 3 | 0580/12 Oct/Nov 2013 |
| 23 | see sheet | 4 | 0580/11 Oct/Nov 2014 |
| 24 | see sheet | 5 | 0580/12 Oct/Nov 2014 |
| 25 | see sheet | 4 | 0580/12 Feb/March 2015 |
| 26 | see sheet | 5 | 0580/13 May/June 2015 |
| 27 | see sheet | 2 | 0580/11 Oct/Nov 2015 |
| 28 | see sheet | 2 | 0580/12 Oct/Nov 2015 |
| 29 | see sheet | 3 | 0580/12 Feb/March 2016 |
| 30 | see sheet | 1 | 0580/13 May/June 2016 |
| 31 | see sheet | 3 | 0580/11 Oct/Nov 2016 |
| 32 | see sheet | 1 | 0580/13 Oct/Nov 2016 |
| 33 | see sheet | 2 | 0580/12 Feb/March 2017 |
| 34 | see sheet | 1 | 0580/11 May/June 2017 |
| 35 | see sheet | 2 | 0580/11 May/June 2017 |
| 36 | see sheet | 1 | 0580/12 May/June 2017 |
| 37 | see sheet | 2 | 0580/13 May/June 2017 |
| 38 | see sheet | 1 | 0580/12 Oct/Nov 2017 |
| 39 | see sheet | 1 | 0580/13 May/June 2018 |
| 40 | see sheet | 4 | 0580/12 Oct/Nov 2018 |
| 41 | see sheet | 2 | 0580/13 May/June 2019 |
| 42 | see sheet | 2 | 0580/12 Oct/Nov 2019 |
| 43 | see sheet | 2 | 0580/12 Oct/Nov 2019 |
| 44 | see sheet | 4 | 0580/12 Feb/March 2020 |
| 45 | see sheet | 2 | 0580/12 May/June 2020 |
| 46 | see sheet | 1 | 0580/11 Oct/Nov 2020 |
| 47 | see sheet | 2 | 0580/12 Oct/Nov 2020 |
| 48 | see sheet | 2 | 0580/12 Oct/Nov 2020 |
| 49 | see sheet | 1 | 0580/13 Oct/Nov 2020 |
| 50 | see sheet | 1 | 0580/12 Feb/March 2021 |
| 51 | see sheet | 4 | 0580/11 May/June 2021 |
| 52 | see sheet | 1 | 0580/12 May/June 2021 |
| 53 | see sheet | 2 | 0580/13 May/June 2021 |
| 54 | see sheet | 1 | 0580/12 Oct/Nov 2021 |
| 55 | see sheet | 2 | 0580/12 Feb/March 2022 |
| 56 | see sheet | 5 | 0580/12 Feb/March 2022 |
| 57 | see sheet | 1 | 0580/11 May/June 2022 |
| 58 | see sheet | 3 | 0580/12 May/June 2022 |
| 59 | see sheet | 2 | 0580/13 May/June 2022 |
| 60 | see sheet | 1 | 0580/12 Oct/Nov 2022 |
| 61 | see sheet | 2 | 0580/13 Oct/Nov 2022 |
| 62 | see sheet | 4 | 0580/13 Oct/Nov 2022 |
| 63 | see sheet | 1 | 0580/12 Feb/March 2024 |
| 64 | see sheet | 2 | 0580/11 May/June 2024 |
| 65 | see sheet | 2 | 0580/13 Oct/Nov 2024 |
| 66 | see sheet | 3 | 0580/12 Feb/March 2025 |
| 67 | see sheet | 3 | 0580/11 May/June 2025 |
| 68 | see sheet | 2 | 0580/12 May/June 2025 |
| 69 | see sheet | 2 | 0580/12 May/June 2025 |
| 70 | see sheet | 5 | 0580/13 May/June 2025 |
| 71 | see sheet | 2 | 0580/11 Oct/Nov 2025 |
| 72 | see sheet | 2 | 0580/12 Oct/Nov 2025 |
| 73 | see sheet | 2 | 0580/13 Oct/Nov 2025 |
| 74 | see sheet | 2 | 0580/13 Oct/Nov 2025 |
4 When x = 5 find the value of (a) 4x2, Answer(a) [1] (b) (4x)2. Answer(b) [1]
2 marks
Mark scheme: 4 (a) 100 1 (b) 400 1
11 = < > Use one of the above symbols to complete each of the statements in the answer spaces. Answer(a) 23 32 [1] Answer(b) 9 % 0.09 [1]
2 marks
Mark scheme: 11 (a) < 1 (b) = 1
5 Work out 4-3 as a fraction. Answer [2]
2 marks
Mark scheme: 5 1 2 B1 for 1 or 4(1 ) 3 or (±) 64 seen. 64 43 decimal form only B0
8 When x = –3 find the value of x3+ 2x2. Answer [2]
2 marks
Mark scheme: 8 –9 www 2 B1 for – 27 or (+)18 seen
9 Work out 433 , giving (a) your full calculator display, Answer(a) [1] (b) your answer correct to the nearest thousand. Answer(b) [1]
2 marks
Mark scheme: 9 (a) 79507 1 (b) 80000 1ft ft provided (a) > 500 and not a multiple of 1000.
7 > = < Choose one of the symbols above to complete each of the following statements. 5 (a) 74% 7 [1] _3 1 (b) 8 2 [1]
2 marks
Mark scheme: 7 (a) > 1 (b) = 1
14 x is an integer between 60 and 90. For Examiner's Write down the value of x when it is Use (a) an odd square number, Answer(a) x = [1] (b) 43, Answer(b) x = [1] (c) a multiple of 29, Answer(c) x = [1] (d) a prime factor of 146. Answer(d) x = [1]
4 marks
Mark scheme: 14 (a) 81 1cao (b) 64 1cao (c) 87 1cao (d) 73 1cao 4 4
14 (a) Find the value of p when p3 = −27. For Examiner's Use Answer(a) p = [1] −1 1 (b) Find the value of q when q = . 6 Answer(b) q = [1] (c) Simplify 8s 2 ÷ 2s −1. Answer(c) [2]
4 marks
Mark scheme: 14 (a) –3 final answer 1 (b) 6 final answer 1 4 (c) 4s3 or − 3 final answer 2 W1 for 4sn (n ≠ 0) or ks3 (k ≠ 0) seen s
14 (a) Find the value of p when p3 = −27. For Examiner's Use Answer(a) p = [1] −1 1 (b) Find the value of q when q = . 6 Answer(b) q = [1] (c) Simplify 8s 2 ÷ 2s −1. Answer(c) [2]
4 marks
Mark scheme: 14 (a) –3 final answer 1 (b) 6 final answer 1 4 (c) 4s3 or − 3 final answer 2 W1 for 4sn (n ≠ 0) or ks3 (k ≠ 0) seen s 8d
12 Write down the value of (a) 10-2, Answer(a) [1] (b) 40, Answer(b) [1] (c) 3 343 . Answer(c) [1]
3 marks
Mark scheme: 1 12 (a) 0.01 or 1 100 (b) 1 1 (c) 7 1 IGCSE – May/June 2010 0580 11
7 Work out 3 7.2 3 − 100 . Give your answer correct to 3 decimal places. Answer [2]
2 marks
Mark scheme: 7 6.489 2 B1 for 6.5 or 6.49 or 6.4891….
9 Using integers between 10 and 30, write down (a) an odd multiple of 7, Answer(a) [1] (b) a cube number. Answer(b) [1]
2 marks
Mark scheme: 9 (a) 21 1 (b) 27 1 AC
6 Find the cube root of 96. Give your answer correct to 2 decimal places. Answer [2]
2 marks
Mark scheme: 6 4.58 cao 2 B1 for 4.6(0) or 4.57 or 4.579 or 4.578 or 4.5789 or 4.5788… SC1 for 4.583 only 8
8 210 211 212 213 214 215 216 For Examiner's From the list of numbers, find Use (a) a prime number, Answer(a) [1] (b) a cube number. Answer(b) [1]
2 marks
Mark scheme: 8 (a) 211 cao 1 (b) 216 cao 1
–2 –2 1318 Show that 3 + 2 = . 36 Write down all the steps of your working. Answer [2]
2 marks
Mark scheme: 1 1 18 , M1 Both fractions seen 9 4 1 1 4 9 13 E1 Both fractions over a common denominator and + = + = 13 9 4 36 36 36 added to give 36
4 (a) Write down the next prime number after 47. Answer(a) [1] (b) Write down the next square number after 49. Answer(b) [1]
2 marks
Mark scheme: 4 (a) 53 1 (b) 64 1
5 I K = For Examiner's Choose one of these symbols to make each statement correct. Use (a) −15 −5 [1] (b) (−5)2 25 [1]
2 marks
Mark scheme: 5 (a) < 1 (b) = 1 750 × 2 × 8 f
18 (a) Which two of these have the same value? For Examiner's Use 2 1 2 2 2 5–2 0.22 5 c 2 m c 5 m Answer(a) … and … [2] (b) Simplify. (i) a6 × a3 Answer(b)(i) … [1] (ii) 24b16 ÷ 6b4 Answer(b)(ii) … [2] _____________________________________________________________________________________
5 marks
Mark scheme: 18 (a) 5–2 and 0.22 2 M1 for any two correct decimal values seen with the correct expression e.g. 0.04, 0.4, 0.25, 0.16, 0.04 (b) (i) a9 1 (ii) 4b12 2 B1 for 4bk or B1 for kb12 where k is an integer ( k ≠ 0 )
2 100 164 200 343 999 Write down the cube number from this list. Answer … [1] _____________________________________________________________________________________
1 marks
Mark scheme: 2 343 1
2 Find the value of 1.473. Give your answer correct to 3 decimal places. Answer … [2] _____________________________________________________________________________________
2 marks
Mark scheme: 2 3.177 2 B1 for 3.176[5] or 3.17 or 3.18
11 Find the value of (a) 94, Answer(a) … [1] (b) 60. Answer(b) … [1] _____________________________________________________________________________________
2 marks
Mark scheme: 11 (a) 6561 cao 1 (b) 1 1
13 (a) Complete the following statement. For Examiner′s Use The two common factors of 15 and 20 are 1 and … . [1] (b) Write down the next square number that is greater than 169. Answer(b) … [1] (c) Write down a prime number between 90 and 100. Answer(c) … [1] _____________________________________________________________________________________
3 marks
Mark scheme: 13 (a) 5 cao 1 (b) 196 cao 1 (c) 97 cao 1
21 (a) Find the value of 5x2 when x = –4. Answer(a) … [2] (b) Make x the subject of the formula y = 5x2. Answer(b) x = … [2] __________________________________________________________________________________________ Question 22 is printed on the next page.
4 marks
Mark scheme: 21 (a) 2 M1 for 5 × (− 4 )2 or 5× 4 2 or better 80 y y (b) [± ] or 2 M1 for correct first step 5 5 y 2 i.e. = x or y = 5 x Final answer 5 or correct 2nd step after incorrect 1st step seen
18 Find (a) the cube root of 729, Answer(a) … [1] (b) the two square roots of 225, Answer(b) … and … [2] (c) a common multiple of 6 and 9, Answer(c) … [1] (d) (–4)2. Answer(d) … [1] __________________________________________________________________________________________
5 marks
Mark scheme: 18 (a) 9 cao 1 (b) 15 and −15 1, 1 (c) Any multiple of 18 1 (d) 16 1
17 6 8 14 36 47 50 130 From the list of numbers, write down one number for each of the following. (a) An odd number. Answer(a) … [1] (b) A square number. Answer(b) … [1] (c) A factor of 70. Answer(c) … [1] (d) A multiple of 26. Answer(d) … [1] __________________________________________________________________________________________
4 marks
Mark scheme: 17 (a) 47 1 (b) 36 1 (c) 14 1 (d) 130 1
19 (a) Write down the prime number between 62 and 70. Answer(a) … [1] (b) Write 54 as the product of its prime factors. Answer(b) … [2] (c) Find the highest common factor (HCF) of 54 and 90. Answer(c) … [2] __________________________________________________________________________________________ Question 20 is printed on the next page.
5 marks
Mark scheme: 19 (a) 67 1 (b) 2 × 33 oe 2 B1 for a correct factor tree or 2,3,3,3 identified (c) 18 cao 2 B1 for final answer of 2, 3, 6 or 9
5 Calculate. (a) 3.2 × (5.7 – 1.3) + 4.8 Answer(a) … [1] (b) 2.54 - 0.85 Answer(b) … [1] __________________________________________________________________________________________
2 marks
Mark scheme: 5 (a) 18.88 cao final answer 1 (b) 1.3 1 13 12
11 (a) Solve. 3x 2 = 108 Answer(a) x = … [1] (b) w 6 # w k = w 18 Find the value of k. Answer(b) k = … [1]
2 marks
Mark scheme: 11 (a) 6 cao 1 (b) 12 final answer 1 6
19 16 19 27 35 36 45 64 For each part of this question, write down one number from the list that is (a) a multiple of 7, … [1] (b) both a square number and a cube number, … [1] (c) a prime number. … [1]
3 marks
Mark scheme: 19 (a) 35 1 (b) 64 1 (c) 19 1
3 Find the cube root of 4913. … [1]
1 marks
Mark scheme: 3 17 1
14 Calculate. 4 (a) of 90 5 … [1] 7.1 # 4 .8 (b) 15.3 - 9.62 … [1] (c) 3 4913 … [1]
3 marks
Mark scheme: 14 (a) 72 1 (b) 6 1 (c) 17 1
3 V = 4p2 Find V when p = 3. V = … [1]
1 marks
Mark scheme: 3 36 1
3 Find the value of (a) 196 , … [1] 24 (b) 3 . .02 … [1]
2 marks
Mark scheme: 3 (a) 14 1 (b) 3000 1
2 Write, as a decimal, the value of 5-3. … [1]
1 marks
Mark scheme: 2 [0].008 1
3 512 16 Work out 2 . 6 Write your answer as a fraction in its lowest terms. … [2]
2 marks
Mark scheme: 16 2 2 8 4 B1 for or 9 36 18
3 Calculate 120 + 3.8 2 - 25 . … [1]
1 marks
Mark scheme: 3 [0].394 1 or [0].3944 to [0].3945
8 Find the value of (a) 173, … [1] (b) 3 729 . … [1]
2 marks
Mark scheme: 8(a) 4913 1 8(b) 9 1
3 Write down the value of 120. … [1]
1 marks
Mark scheme: 3 1 1
5 Work out the value of 4 - 2 . … [1]
1 marks
Mark scheme: 5 1 1 [0].0625 or 16
16 Calculate. (a) .413 … [1] (b) - 4 - 5 2 - 2 # 4 # - 3 ^ h … [1] 4.88 - 2.36 (c) 5.3 + 1.9 … [1] (d) 56.25 - 3 15.625 … [1]
4 marks
Mark scheme: 16(a) 68.921 1 16(b) –53 1 16(c) [0].35 1 16(d) 5 1
8 Calculate. (a) - 12 ' - 2 … [1] (b) 3 2 3 + 2 … [1]
2 marks
Mark scheme: 8(a) 6 1 8(b) 2.15 or 2.154 … 1
4 Find the value of (a) 242, … [1] (b) 3 2197 . … [1]
2 marks
Mark scheme: 4(a) 576 1 4(b) 13 1
13 Find the value of (a) 60 + 62, … [1] (b) 5-4. … [1]
2 marks
Mark scheme: 13(a) 37 1 13(b) 1 1 [0].0016 or 1.6 × 10–3 or 625
8 (a) Write down the reciprocal of 40. … [1] (b) Calculate 3 40 . Give your answer correct to 4 decimal places. … [2] (c) Write the number 40 in standard form. … [1]
4 marks
Mark scheme: 8(a) 1 1 or 0.025 40 8(b) 3.4200 cao 2 B1 for 3.419 to 3.420 8(c) 4[.0] × 10[1] cao 1
4 (a) Find the value of 196. … [1] (b) Calculate 153. … [1]
2 marks
Mark scheme: 4(a) 14 1 4(b) 3375 1
4 Calculate. 1 - 82 .001 … [1]
1 marks
Mark scheme: 4 6 1
1 29 A = bc 4 Calculate the value of A when b = 3 and c = 6 . … [2]
2 marks
Mark scheme: 9 27 2 M1 for 0.25 × 3 × 62 or better
21 Write 825 as the product of its prime factors. … [2]
2 marks
Mark scheme: 21 3 × 52 × 11 or 3 × 5 × 5 × 11 2 B1 for 3, 5, 5, 11 May be seen in a factor tree or table
8 Calculate. 4 .00025 … [1]
1 marks
Mark scheme: 8 80 1
3 Calculate the value of .729 . … [1]
1 marks
Mark scheme: 3 2.7[0] 1
2 (a) Find the value of 225. … [1] 2 (b) Write down the reciprocal of . 3 … [1] (c) Work out three‑quarters of one‑third. … [1] (d) Work out - 7 - ( 6 - 8) . … [1]
4 marks
Mark scheme: 2(a) 15 1 2(b) 1 1 12 oe 2(c) 1 1 oe 4 2(d) –5 1
11 Calculate 4 .00256 . … [1]
1 marks
Mark scheme: 11 2 1 0.4 or 5
9 12 18 29 49 91 125 From the list of numbers, write down (a) a cube number, … [1] (b) a prime number. … [1]
2 marks
Mark scheme: 9(a) 125 1 9(b) 29 1
2 Find the value of 345.96. … [1]
1 marks
Mark scheme: 2 18.6 1
10 Work out 5 # 62 . Give your answer correct to 2 decimal places. … [2]
2 marks
Mark scheme: 10 80.50 cao 2 B1 for 80.498…or 80.5 or correctly rounding their more accurate decimal to 2dp
19 Simplify. (a) 5f + 7g - 8f + 2g … [2] (b) h 2 # h 5 … [1] (c) 16x 2 # 5y 0 … [2]
5 marks
Mark scheme: 19(a) −3 f + 9 g final answer 2 B1 for −f3 or 9g or correct answer spoilt 19(b) h7 final answer 1 19(c) 20x 2 2 0 B1 for 16 x = 4 x soi or y = 1 soi
9 Calculate 4 5 - 5 4 . … [1]
1 marks
Mark scheme: 9 399 1
13 (a) Find the value of 68 # 153 . … [1] 3 (b) Find the value of 6789 1. Give your answer correct to 2 decimal places. … [2]
3 marks
Mark scheme: 13(a) 102 1 13(b) 18.94 cao 2 B1 for 18.9 or 18.93 or 18.935… If zero scored, SC1 for rounding their value correctly to 2 decimal places
mk 37 Work out the value of when m = 4 and k = 7 . 3 … [2]
2 marks
Mark scheme: 7 792 or 792.1… 2 4 7 3 M1 for oe 3 or B1 for 1372
2 Find the value of 53.29 . … [1]
1 marks
Mark scheme: 2 7.3 1
3 120 121 149 164 216 From this list, write down (a) a square number, … [1] (b) a cube number. … [1]
2 marks
Mark scheme: 3(a) 121 1 3(b) 216 1
22 (a) 120 = 2 m # 3 # 5 Find the value of m. m = … [1] (b) One traffic light changes to red every 120 seconds. Another traffic light changes to red every 144 seconds. Both change to red at 10 00. Find the time at which they next change to red together. … [3]
4 marks
Mark scheme: 22(a) 3 cao 1 22(b) 10 12 3 B2 for 720 or 12 mins OR M1 for 720k or 2 2 2 2 3 3 5 or [144 =] 2 2 2 2 3 3 and [120 =] 2 2 2 3 5 or correct factor trees or tables of both 120 and 144 OR M2 for listing times/multiples of both 120 and 144 to at least 720 or 10 12 or M1 for listing at least 3 of each or one full list
8 Calculate 5.76 + 2.83 . … [1]
1 marks
Mark scheme: 8 24.352 1
19 Calculate. (a) 3 343 - 40.96 … [1] (b) (192 + 4 # 16 ) .125 … [1]
2 marks
Mark scheme: 19(a) 3 1 0.6 or 5 19(b) 1024 1
8 61 62 63 64 65 66 67 68 69 From the list of numbers, write down (a) a cube number … [1] (b) a prime number. … [1]
2 marks
Mark scheme: 8(a) 64 1 8(b) 61 or 67 1
4 Find the value of (a) 103 … [1] (b) 3 27 … [1] (c) 70. … [1]
3 marks
Mark scheme: 4(a) 1000 1 4(b) 3 1 4(c) 1 1
22 A = 2 3 # 3 B = 3 2 # 5 (a) Find the highest common factor (HCF) of A and B. … [1] (b) Find the lowest common multiple (LCM) of A and B. … [2]
3 marks
Mark scheme: 22(a) 3 1 22(b) 360 2 B1 for answer 360k, k > 1 or M1 for 23×32×5 oe or for 24, 48, 72… and 45, 90, 135… seen
3 Write down the value of (a) 36 … [1] (b) 103. … [1]
2 marks
Mark scheme: 3(a) 6 1 3(b) 1000 cao 1
7 (a) Find the value of the reciprocal of 1. 3 … [1] (b) Write 2 -3 as a fraction. … [1]
2 marks
Mark scheme: 7(a) 3 1 7(b) 1 1 cao 8
3 (a) Write down 169 . … [1] (b) Work out the value of 24. … [1] (c) Work out the value of 10 -2 . … [1] (d) Work out -18 ' -4 . … [1] (e) Work out 1.6 # 0. 02 . … [1]
5 marks
Mark scheme: 3(a) 13 1 3(b) 16 1 3(c) 1 1 or 0.01 100 3(d) 9 1 1 or 4.5 or 4 2 2 3(e) 0.032 1
17 (a) Write down a prime number between 20 and 30. … [1] 2 (b) Simplify ` 9j . … [1]
2 marks
Mark scheme: 17(a) 23 or 29 1 17(b) 9 cao 1
4 (a) Write down the value of 144. … [1] (b) Work out the value of 53. … [1]
2 marks
Mark scheme: 4(a) 12 1 4(b) 125 cao 1
6 Anna thinks of a number, she multiplies it by 2 and then finds the square root. The answer is 12. What number did Anna think of? … [2]
2 marks
Mark scheme: 6 72 2 M1 for 122 [÷ 2]
9 Find the value of (a) 25 … [1] (b) 60. … [1]
2 marks
Mark scheme: 9(a) 32 1 9(b) 1 1