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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 510 · 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. 1.1050 ÷ 25 =
  2. 2.10% of 90 =
  3. 3.Best estimate of 899 × 6? (a) 540 (b) 10800 (c) 54000 (d) 5400
  4. 4.6 + 4 + 7 + 8 + 9 =
  5. 5.5% of 300 =
  6. 6.24 × 5 =
  7. 7.₹59.60 + ₹11.85 =
  8. 8.247 + 37 =
  9. 9.870 ÷ 5 =
  10. 10.₹11.10 + ₹49.65 =
  11. 11.7 + 4 + 7 + 4 + 3 =
  12. 12.Best estimate of 38 × 39? (a) 16000 (b) 160 (c) 1600 (d) 3200
  13. 13.33 × 4 =
  14. 14.40 × 8 =
  15. 15.₹58.30 + ₹8.35 =
  16. 16.66 + 67 + 86 + 78 =
  17. 17.55 + 79 + 74 + 55 =
  18. 18.6 + 5 + 2 + 4 =
  19. 19.383 − 27 =
  20. 20.1 + 9 + 3 + 4 + 6 =
  21. 21.19² =
  22. 22.26 × 15 =
  23. 23.479 − 66 =
  24. 24.3 + 1 + 6 + 7 =
  25. 25.60 + 27 =
  26. 26.85 × 5 =
  27. 27.55 × 15 =
  28. 28.55 + 87 =
  29. 29.5 + 9 + 5 + 5 =
  30. 30.₹92.60 − ₹42.90 =
  31. 31.1% of 300 =
  32. 32.425 ÷ 25 =
  33. 33.189 − 78 =
  34. 34.586 − 77 =
  35. 35.29 × 15 =
  36. 36.32 × 5 =
  37. 37.₹40.60 + ₹7.20 =
  38. 38.43 × 15 =
  39. 39.51 × 4 =
  40. 40.194 − 38 =

Answer key

  1. 42
  2. 9
  3. 5400
  4. 34
  5. 15
  6. 120
  7. 71.45
  8. 284
  9. 174
  10. 60.75
  11. 25
  12. 1600
  13. 132
  14. 320
  15. 66.65
  16. 297
  17. 263
  18. 17
  19. 356
  20. 23
  21. 361
  22. 390
  23. 413
  24. 17
  25. 87
  26. 425
  27. 825
  28. 142
  29. 24
  30. 49.7
  31. 3
  32. 17
  33. 111
  34. 509
  35. 435
  36. 160
  37. 47.8
  38. 645
  39. 204
  40. 156

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