Comparing and Ordering Numbers
Unit 1 — Number: Place Value and Ordering
✓ ANSWERS
Q1. 3456 < 3465 [1]
Q2. 0.34 > 0.304 [1]
Q3. 12 050 < 12 500 [1]
Q4. 0.099 < 0.1 [1]
Q5. 7.45 > 7.405 [1]
Q6. 100 000 > 99 999 [1]
Q7. 3.07 < 3.7 [1]
Q8. 0.505 < 0.55 [1]
Section B — Ascending Order
Q9. 4215, 4251, 4512, 4521 [1]
Q10. 0.06, 0.6, 0.606, 0.66 [1]
Q11. 3.001, 3.01, 3.1, 3.11 [1]
Q12. 10 005, 10 050, 10 500, 10 550 [1]
Q13. 1/4=0.25; so: 0.205, 0.25 (=1/4), 0.25 (tie), 0.52 → 0.205, 1/4, 0.25, 0.52 [1]
Q14. −7, −3, −1, 2 [1]
Q15. 8.09, 8.099, 8.9, 8.99 [1]
Q16. 0.003, 0.03, 0.033, 0.3 [1]
Q17. 7.55, 7.505, 7.5, 7.05 [1]
Q18. 24 300, 23 400, 23 205 (wait — 23 205 not listed); 24 300, 23 400, 23 040, 23 004 [1]
Q19. 1.6 [1]
Q20. 3000 (decreasing by 250) [1]
Q21. 55, 52, 47, 47, 39 [1]
Q22. Cheapest = £4.09; order: £4.09, £4.90, £4.99 [1]
Q23. −5, −2, 0, 3, 4 [1]
Q24. 12.005 s (fastest) [1]
Q25. 34 250, 34 205, 34 025 [1]
Q26. £1.50 per litre [1]
Q27. 12.03, 12.033, 12.3, 12.303, 12.33 [1]
Q28. 71, 62, 59, 56, 47 [1]
Q29. 0.7 (increasing by 0.2) [1]
Q30. 2/5 = 0.4 < 0.45 → 0.45 is greater [1]