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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 426 · 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. 1.25 + 79 + 14 + 69 =
  2. 2.945 ÷ 5 =
  3. 3.1% of 290 =
  4. 4.389 − 59 =
  5. 5.Check with nines: 19 × 96 = 1832. Correct or wrong? (a) wrong (b) correct
  6. 6.₹63.05 − ₹8.15 =
  7. 7.1275 ÷ 25 =
  8. 8.Check with nines: 20 × 77 = 1540. Correct or wrong? (a) correct (b) wrong
  9. 9.3 + 7 + 1 + 9 =
  10. 10.35 × 8 =
  11. 11.31 × 15 =
  12. 12.549 − 57 =
  13. 13.448 − 28 =
  14. 14.256 − 39 =
  15. 15.7 + 9 + 3 + 7 =
  16. 16.₹89.80 + ₹2.90 =
  17. 17.Best estimate of 68 × 62? (a) 42000 (b) 4200 (c) 420 (d) 8400
  18. 18.935 ÷ 5 =
  19. 19.₹42.30 + ₹10.40 =
  20. 20.₹21.95 + ₹15.90 =
  21. 21.26 × 15 =
  22. 22.Check with nines: 320 + 523 = 839. Correct or wrong? (a) wrong (b) correct
  23. 23.14 × 11 =
  24. 24.33 + 46 + 29 + 14 =
  25. 25.5% of 160 =
  26. 26.48 + 70 + 71 + 69 =
  27. 27.5% of 60 =
  28. 28.533 − 26 =
  29. 29.34 × 50 =
  30. 30.83 × 50 =
  31. 31.49 + 55 + 54 + 77 =
  32. 32.159 + 58 =
  33. 33.₹89.05 − ₹27.05 =
  34. 34.69² =
  35. 35.8 + 2 + 2 + 3 =
  36. 36.1 + 9 + 1 + 9 + 3 =
  37. 37.₹15.25 + ₹43.45 =
  38. 38.105 + 19 =
  39. 39.52 × 4 =
  40. 40.115 × 4 =

Answer key

  1. 187
  2. 189
  3. 2.9
  4. 330
  5. wrong
  6. 54.9
  7. 51
  8. correct
  9. 20
  10. 280
  11. 465
  12. 492
  13. 420
  14. 217
  15. 26
  16. 92.7
  17. 4200
  18. 187
  19. 52.7
  20. 37.85
  21. 390
  22. wrong
  23. 154
  24. 122
  25. 8
  26. 258
  27. 3
  28. 507
  29. 1700
  30. 4150
  31. 235
  32. 217
  33. 62
  34. 4761
  35. 15
  36. 23
  37. 58.7
  38. 124
  39. 208
  40. 460

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