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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 516 · 40 questions
TalentJR

The fast method (Spot the trick): A 7, 8 or 9 in the ones place → round and fix. × 4, 8, 5, 50 or 15 → doubling or halving tricks. ÷ 5, 25 or 50 → double first. A percentage → start from 10%. Checking or estimating → nines or rounding.

NameDateTime takenScore ___ / 40
  1. 1.6 + 2 + 4 + 8 + 9 =
  2. 2.Best estimate of 601 × 4? (a) 4800 (b) 2400 (c) 240 (d) 24000
  3. 3.470 + 19 =
  4. 4.250 ÷ 25 =
  5. 5.3 + 9 + 4 + 7 + 1 =
  6. 6.2000 ÷ 50 =
  7. 7.42 × 50 =
  8. 8.Check with nines: 357 + 796 = 1151. Correct or wrong? (a) wrong (b) correct
  9. 9.50% of 850 =
  10. 10.₹72.90 + ₹17.65 =
  11. 11.1% of 690 =
  12. 12.15 × 15 =
  13. 13.945 ÷ 5 =
  14. 14.260 ÷ 5 =
  15. 15.Best estimate of 69 × 69? (a) 49000 (b) 4900 (c) 490 (d) 9800
  16. 16.300 ÷ 25 =
  17. 17.5 + 5 + 6 + 5 =
  18. 18.10% of 240 =
  19. 19.5% of 650 =
  20. 20.Best estimate of 29 × 62? (a) 3600 (b) 18000 (c) 1800 (d) 180
  21. 21.₹59.75 + ₹36.20 =
  22. 22.12 × 15 =
  23. 23.35 × 4 =
  24. 24.Best estimate of 58 × 52? (a) 6000 (b) 300 (c) 3000 (d) 30000
  25. 25.21² =
  26. 26.24 × 15 =
  27. 27.20% of 540 =
  28. 28.61² =
  29. 29.18 × 13 =
  30. 30.28 × 15 =
  31. 31.12 × 15 =
  32. 32.3 + 9 + 7 + 1 =
  33. 33.5 + 5 + 4 + 1 + 9 =
  34. 34.590 − 37 =
  35. 35.54 − 46 =
  36. 36.43 + 13 + 61 + 67 =
  37. 37.₹25.75 + ₹25.15 =
  38. 38.12 × 18 =
  39. 39.875 ÷ 25 =
  40. 40.377 + 28 =

Answer key

  1. 29
  2. 2400
  3. 489
  4. 10
  5. 24
  6. 40
  7. 2100
  8. wrong
  9. 425
  10. 90.55
  11. 6.9
  12. 225
  13. 189
  14. 52
  15. 4900
  16. 12
  17. 21
  18. 24
  19. 32.5
  20. 1800
  21. 95.95
  22. 180
  23. 140
  24. 3000
  25. 441
  26. 360
  27. 108
  28. 3721
  29. 234
  30. 420
  31. 180
  32. 20
  33. 24
  34. 553
  35. 8
  36. 184
  37. 50.9
  38. 216
  39. 35
  40. 405

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