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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 550 · 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.Check with nines: 178 + 519 = 697. Correct or wrong? (a) wrong (b) correct
  2. 2.900 ÷ 5 =
  3. 3.36 + 61 + 20 + 67 =
  4. 4.2 + 6 + 2 + 8 =
  5. 5.17 × 17 =
  6. 6.474 − 66 =
  7. 7.354 + 59 =
  8. 8.₹8.25 + ₹22.65 =
  9. 9.₹88.45 + ₹15.55 =
  10. 10.31² =
  11. 11.1% of 420 =
  12. 12.477 − 47 =
  13. 13.89² =
  14. 14.₹97.70 − ₹13.25 =
  15. 15.137 × 4 =
  16. 16.566 − 36 =
  17. 17.22 × 8 =
  18. 18.72 + 48 + 74 + 48 =
  19. 19.19 × 19 =
  20. 20.35 × 50 =
  21. 21.₹17.95 + ₹20.50 =
  22. 22.60 × 50 =
  23. 23.59 + 62 + 14 + 45 =
  24. 24.2 + 3 + 6 + 8 =
  25. 25.₹77.40 + ₹6.05 =
  26. 26.37 × 15 =
  27. 27.Check with nines: 59 × 48 = 2832. Correct or wrong? (a) wrong (b) correct
  28. 28.345 − 89 =
  29. 29.353 + 38 =
  30. 30.1100 ÷ 50 =
  31. 31.6 + 1 + 1 + 4 =
  32. 32.725 ÷ 5 =
  33. 33.5 + 4 + 8 + 2 + 4 =
  34. 34.91 × 5 =
  35. 35.372 − 86 =
  36. 36.9 + 7 + 1 + 3 =
  37. 37.52 × 15 =
  38. 38.295 ÷ 5 =
  39. 39.180 ÷ 5 =
  40. 40.98 × 50 =

Answer key

  1. correct
  2. 180
  3. 184
  4. 18
  5. 289
  6. 408
  7. 413
  8. 30.9
  9. 104
  10. 961
  11. 4.2
  12. 430
  13. 7921
  14. 84.45
  15. 548
  16. 530
  17. 176
  18. 242
  19. 361
  20. 1750
  21. 38.45
  22. 3000
  23. 180
  24. 19
  25. 83.45
  26. 555
  27. correct
  28. 256
  29. 391
  30. 22
  31. 12
  32. 145
  33. 23
  34. 455
  35. 286
  36. 20
  37. 780
  38. 59
  39. 36
  40. 4900

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