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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 588 · 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. 1.72 × 50 =
  2. 2.101 × 4 =
  3. 3.587 − 78 =
  4. 4.25 × 8 =
  5. 5.488 − 67 =
  6. 6.91² =
  7. 7.40 + 11 + 17 + 72 =
  8. 8.53 + 66 + 68 + 18 =
  9. 9.162 − 89 =
  10. 10.38 × 8 =
  11. 11.1 + 9 + 7 + 1 + 1 =
  12. 12.₹52.55 + ₹33.30 =
  13. 13.202 + 97 =
  14. 14.₹86.90 + ₹49.85 =
  15. 15.15 × 50 =
  16. 16.30 × 15 =
  17. 17.₹78.25 + ₹21.20 =
  18. 18.5% of 740 =
  19. 19.1900 ÷ 50 =
  20. 20.8 + 3 + 3 + 4 + 6 =
  21. 21.5% of 270 =
  22. 22.85 × 5 =
  23. 23.478 + 48 =
  24. 24.17 × 18 =
  25. 25.4 × 15 =
  26. 26.62 × 15 =
  27. 27.344 + 38 =
  28. 28.492 − 29 =
  29. 29.₹13.05 + ₹33.65 =
  30. 30.455 − 98 =
  31. 31.15% of 400 =
  32. 32.89² =
  33. 33.22 × 8 =
  34. 34.19 × 17 =
  35. 35.18 × 12 =
  36. 36.Best estimate of 52 × 18? (a) 2000 (b) 100 (c) 1000 (d) 10000
  37. 37.81² =
  38. 38.₹42.30 + ₹31.45 =
  39. 39.₹94.05 + ₹19.55 =
  40. 40.5% of 240 =

Answer key

  1. 3600
  2. 404
  3. 509
  4. 200
  5. 421
  6. 8281
  7. 140
  8. 205
  9. 73
  10. 304
  11. 19
  12. 85.85
  13. 299
  14. 136.75
  15. 750
  16. 450
  17. 99.45
  18. 37
  19. 38
  20. 24
  21. 13.5
  22. 425
  23. 526
  24. 306
  25. 60
  26. 930
  27. 382
  28. 463
  29. 46.7
  30. 357
  31. 60
  32. 7921
  33. 176
  34. 323
  35. 216
  36. 1000
  37. 6561
  38. 73.75
  39. 113.6
  40. 12

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