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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 277 · 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. 1.22 × 15 =
  2. 2.6 + 6 + 7 + 3 =
  3. 3.347 − 36 =
  4. 4.120 ÷ 5 =
  5. 5.28 × 15 =
  6. 6.1 + 9 + 3 + 1 =
  7. 7.2 + 1 + 3 + 9 =
  8. 8.21² =
  9. 9.1050 ÷ 25 =
  10. 10.12 × 5 =
  11. 11.73 × 8 =
  12. 12.250 + 69 =
  13. 13.23 × 15 =
  14. 14.₹69.65 + ₹9.30 =
  15. 15.3 + 2 + 1 + 7 + 7 =
  16. 16.129 × 4 =
  17. 17.Best estimate of 97 × 8? (a) 80 (b) 8000 (c) 800 (d) 1600
  18. 18.45 + 74 + 88 + 24 =
  19. 19.86 + 24 + 23 + 42 =
  20. 20.61² =
  21. 21.62 × 5 =
  22. 22.47 × 15 =
  23. 23.155 × 4 =
  24. 24.₹27.40 + ₹47.85 =
  25. 25.19² =
  26. 26.17 × 14 =
  27. 27.1 + 3 + 7 + 4 =
  28. 28.15 × 15 =
  29. 29.89² =
  30. 30.1 + 7 + 6 + 3 + 8 =
  31. 31.10% of 250 =
  32. 32.34 × 5 =
  33. 33.243 − 87 =
  34. 34.245 ÷ 5 =
  35. 35.₹41.90 + ₹2.35 =
  36. 36.4 + 3 + 4 + 6 =
  37. 37.43 × 5 =
  38. 38.403 − 97 =
  39. 39.21 × 15 =
  40. 40.420 + 27 =

Answer key

  1. 330
  2. 22
  3. 311
  4. 24
  5. 420
  6. 14
  7. 15
  8. 441
  9. 42
  10. 60
  11. 584
  12. 319
  13. 345
  14. 78.95
  15. 20
  16. 516
  17. 800
  18. 231
  19. 175
  20. 3721
  21. 310
  22. 705
  23. 620
  24. 75.25
  25. 361
  26. 238
  27. 15
  28. 225
  29. 7921
  30. 25
  31. 25
  32. 170
  33. 156
  34. 49
  35. 44.25
  36. 17
  37. 215
  38. 306
  39. 315
  40. 447

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