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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 98 · 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. 1.56 + 12 + 20 + 11 =
  2. 2.₹95.95 − ₹10.10 =
  3. 3.265 + 18 =
  4. 4.42 × 15 =
  5. 5.₹62.25 + ₹39.90 =
  6. 6.₹98.95 + ₹20.35 =
  7. 7.29² =
  8. 8.200 ÷ 50 =
  9. 9.31² =
  10. 10.15% of 700 =
  11. 11.49² =
  12. 12.25% of 170 =
  13. 13.890 ÷ 5 =
  14. 14.17 × 50 =
  15. 15.49² =
  16. 16.4 + 3 + 2 + 7 + 8 =
  17. 17.63 × 15 =
  18. 18.76 × 50 =
  19. 19.10% of 100 =
  20. 20.78 × 50 =
  21. 21.25% of 160 =
  22. 22.28 + 65 + 78 + 31 =
  23. 23.10% of 840 =
  24. 24.25% of 330 =
  25. 25.58 × 8 =
  26. 26.₹80.60 + ₹20.60 =
  27. 27.70 ÷ 5 =
  28. 28.19 × 16 =
  29. 29.94 × 5 =
  30. 30.Best estimate of 98 × 9? (a) 900 (b) 9000 (c) 90 (d) 1800
  31. 31.₹86.65 − ₹36.55 =
  32. 32.133 × 4 =
  33. 33.1050 ÷ 50 =
  34. 34.47 × 15 =
  35. 35.190 ÷ 5 =
  36. 36.79² =
  37. 37.265 ÷ 5 =
  38. 38.19² =
  39. 39.9 + 7 + 4 + 2 + 1 =
  40. 40.₹94.10 − ₹16.05 =

Answer key

  1. 99
  2. 85.85
  3. 283
  4. 630
  5. 102.15
  6. 119.3
  7. 841
  8. 4
  9. 961
  10. 105
  11. 2401
  12. 42.5
  13. 178
  14. 850
  15. 2401
  16. 24
  17. 945
  18. 3800
  19. 10
  20. 3900
  21. 40
  22. 202
  23. 84
  24. 82.5
  25. 464
  26. 101.2
  27. 14
  28. 304
  29. 470
  30. 900
  31. 50.1
  32. 532
  33. 21
  34. 705
  35. 38
  36. 6241
  37. 53
  38. 361
  39. 23
  40. 78.05

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