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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 673 · 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. 1.385 + 99 =
  2. 2.13 × 12 =
  3. 3.485 − 96 =
  4. 4.21² =
  5. 5.162 − 87 =
  6. 6.6 + 4 + 6 + 6 =
  7. 7.450 ÷ 50 =
  8. 8.47 + 43 + 47 + 63 =
  9. 9.41² =
  10. 10.37 × 15 =
  11. 11.5 + 1 + 2 + 3 + 8 =
  12. 12.12 + 53 + 63 + 45 =
  13. 13.25% of 320 =
  14. 14.₹23.50 + ₹16.95 =
  15. 15.17 × 4 =
  16. 16.Check with nines: 67 × 60 = 4026. Correct or wrong? (a) correct (b) wrong
  17. 17.1000 ÷ 25 =
  18. 18.89² =
  19. 19.88 + 40 + 86 + 23 =
  20. 20.₹84.25 + ₹44.45 =
  21. 21.₹7.30 + ₹24.20 =
  22. 22.1400 ÷ 25 =
  23. 23.56 × 50 =
  24. 24.14 + 36 + 25 + 70 =
  25. 25.108 + 37 =
  26. 26.18 × 15 =
  27. 27.417 + 78 =
  28. 28.6 + 3 + 3 + 7 + 1 =
  29. 29.₹61.75 − ₹6.55 =
  30. 30.96 × 4 =
  31. 31.15 × 16 =
  32. 32.29 × 15 =
  33. 33.7 + 3 + 5 + 1 + 6 =
  34. 34.29 × 8 =
  35. 35.89² =
  36. 36.89² =
  37. 37.₹79.25 + ₹17.05 =
  38. 38.20% of 740 =
  39. 39.34 × 50 =
  40. 40.127 × 4 =

Answer key

  1. 484
  2. 156
  3. 389
  4. 441
  5. 75
  6. 22
  7. 9
  8. 200
  9. 1681
  10. 555
  11. 19
  12. 173
  13. 80
  14. 40.45
  15. 68
  16. wrong
  17. 40
  18. 7921
  19. 237
  20. 128.7
  21. 31.5
  22. 56
  23. 2800
  24. 145
  25. 145
  26. 270
  27. 495
  28. 20
  29. 55.2
  30. 384
  31. 240
  32. 435
  33. 22
  34. 232
  35. 7921
  36. 7921
  37. 96.3
  38. 148
  39. 1700
  40. 508

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