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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 334 · 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. 1.393 − 38 =
  2. 2.5% of 90 =
  3. 3.₹87.85 + ₹17.20 =
  4. 4.25 + 87 + 77 + 50 =
  5. 5.14 × 5 =
  6. 6.101 − 58 =
  7. 7.31 × 15 =
  8. 8.14 × 15 =
  9. 9.Check with nines: 80 × 49 = 3915. Correct or wrong? (a) wrong (b) correct
  10. 10.20 × 8 =
  11. 11.₹54.70 − ₹14.95 =
  12. 12.16 × 17 =
  13. 13.11 × 19 =
  14. 14.46 × 8 =
  15. 15.10% of 860 =
  16. 16.175 ÷ 5 =
  17. 17.7 + 8 + 7 + 3 + 3 =
  18. 18.69² =
  19. 19.21 × 4 =
  20. 20.550 ÷ 50 =
  21. 21.900 ÷ 50 =
  22. 22.1% of 720 =
  23. 23.₹41.95 + ₹27.65 =
  24. 24.₹29.35 + ₹23.75 =
  25. 25.₹96.45 + ₹22.55 =
  26. 26.118 − 19 =
  27. 27.₹69.15 + ₹29.55 =
  28. 28.438 − 56 =
  29. 29.20% of 380 =
  30. 30.52 × 5 =
  31. 31.14 × 15 =
  32. 32.400 − 56 =
  33. 33.275 ÷ 25 =
  34. 34.550 ÷ 50 =
  35. 35.250 ÷ 25 =
  36. 36.3 + 5 + 4 + 4 + 6 =
  37. 37.71² =
  38. 38.16 × 4 =
  39. 39.87 + 39 =
  40. 40.₹34.90 − ₹6.75 =

Answer key

  1. 355
  2. 4.5
  3. 105.05
  4. 239
  5. 70
  6. 43
  7. 465
  8. 210
  9. wrong
  10. 160
  11. 39.75
  12. 272
  13. 209
  14. 368
  15. 86
  16. 35
  17. 28
  18. 4761
  19. 84
  20. 11
  21. 18
  22. 7.2
  23. 69.6
  24. 53.1
  25. 119
  26. 99
  27. 98.7
  28. 382
  29. 76
  30. 260
  31. 210
  32. 344
  33. 11
  34. 11
  35. 10
  36. 22
  37. 5041
  38. 64
  39. 126
  40. 28.15

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