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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 610 · 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. 1.64 × 5 =
  2. 2.16 × 18 =
  3. 3.3 + 1 + 1 + 9 =
  4. 4.Best estimate of 599 × 5? (a) 300 (b) 30000 (c) 3000 (d) 6000
  5. 5.₹22.95 + ₹21.75 =
  6. 6.Best estimate of 499 × 3? (a) 150 (b) 3000 (c) 15000 (d) 1500
  7. 7.31 + 11 + 13 + 51 =
  8. 8.27 + 20 + 58 + 85 =
  9. 9.49² =
  10. 10.20 + 63 + 52 + 80 =
  11. 11.Check with nines: 67 × 80 = 5359. Correct or wrong? (a) wrong (b) correct
  12. 12.50% of 600 =
  13. 13.Best estimate of 58 × 19? (a) 120 (b) 1200 (c) 12000 (d) 2400
  14. 14.14 × 19 =
  15. 15.18 × 11 =
  16. 16.64 × 8 =
  17. 17.₹27.70 − ₹5.50 =
  18. 18.81² =
  19. 19.₹46.20 − ₹44.65 =
  20. 20.15 × 15 =
  21. 21.62 × 15 =
  22. 22.₹25.10 − ₹15.65 =
  23. 23.225 ÷ 25 =
  24. 24.19² =
  25. 25.5% of 340 =
  26. 26.172 − 67 =
  27. 27.670 ÷ 5 =
  28. 28.₹75.05 + ₹49.70 =
  29. 29.185 ÷ 5 =
  30. 30.21 + 57 + 73 + 15 =
  31. 31.850 ÷ 25 =
  32. 32.66 + 78 + 66 + 33 =
  33. 33.25% of 770 =
  34. 34.486 − 37 =
  35. 35.54 × 4 =
  36. 36.28 + 39 + 33 + 85 =
  37. 37.₹33.20 − ₹9.40 =
  38. 38.69² =
  39. 39.13 × 19 =
  40. 40.255 + 39 =

Answer key

  1. 320
  2. 288
  3. 14
  4. 3000
  5. 44.7
  6. 1500
  7. 106
  8. 190
  9. 2401
  10. 215
  11. wrong
  12. 300
  13. 1200
  14. 266
  15. 198
  16. 512
  17. 22.2
  18. 6561
  19. 1.55
  20. 225
  21. 930
  22. 9.45
  23. 9
  24. 361
  25. 17
  26. 105
  27. 134
  28. 124.75
  29. 37
  30. 166
  31. 34
  32. 243
  33. 192.5
  34. 449
  35. 216
  36. 185
  37. 23.8
  38. 4761
  39. 247
  40. 294

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