Mkt_NJM_BP_UPC

Answers Exercise 1 Arithmetic Operations 1. 12 + 70 = 82 2. 2000 – 106 = 1894 3. 97 – 48 + 23 = 72 4. 30 × 5 – 38 = 112 5. (12 + 4) × 8 = 128 6. (35 + 17) ÷ 13 = 4 7. (30 – 14) + 20 = 36 8. 28 ÷ 4 + 16 × 4 = 71 9. 50 – 45 ÷ 9 = 45 10. 10 11. 70 12. 3317 13. 160 14. 177 15. 36 16. 41 17. 34 18. False 19. False 20. True 21. True 22. (a) 56 (b) 72 (c) 150 (d) 120 23. (a) 6 (b) 4 (c) 27 (d) 6 24. 87 25. $15 26. $36 27. 2 kg 28. $152 29. $80 30. 16 31. 1:45 p.m., 5:30 p.m., 9:15 p.m. Exercise 2 Decimals and Fractions 1. (a)  (b)  (c)  (d)  (e)  (f)  2. (a) 3 10 (b) 8 9 (c) 3 3. (a) 11 20 (b) 33 4 (c) 5 15 8 4. (a) 0.49 (b) 3.125 (c) 1.08 5. (a) < (b) > (c) < 6. (a) 0.969 < 6.7 < 8.03 < 10.34 (b) 3.06 < 3.6 < 30.6 < 36 7. (a) 5 2 7 1 6 3 12 2    (b) 1 1 1 1 1.15 1 0.5 0.12 4 16 8      8. 4.8 9. 60 10. 9 11. 1.92 12. 1 2 13. 1 6 14. 7 180 15. 101 81 16. 16 45 17. 49 72 18. 51 6 19. 1 3 20. 0.25 L 21. 3 7 22. $14.4 23. $92.5 24. $50 25. $75.4 26. 12 35 Exercise 4 Basic Algebra and . Simple Equations 1. Alegebraic expression Equation (a) 5 4 b +  (b) 7 3 17 c + =  (c) 2 3 8 1 d d + =  (d) 2 100 x −  (e) 2 6 7 3 m n − =  2. a + 10 3. b – 7 4. 5 c 5. 4 d 6. a + 5.5 7. b – 10 SAMPLE © Pearson Education Asia Limited 2020 All rights reserved; no part of this publication may be reproduced, photocopied, recorded or otherwise, without the prior written permission of Pearson.