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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 6 · 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. 1.50% of 510 =
  2. 2.96 − 17 =
  3. 3.25% of 690 =
  4. 4.14 × 15 =
  5. 5.25 × 15 =
  6. 6.Best estimate of 69 × 28? (a) 21000 (b) 2100 (c) 210 (d) 4200
  7. 7.12 × 16 =
  8. 8.307 + 47 =
  9. 9.Check with nines: 44 × 24 = 1056. Correct or wrong? (a) correct (b) wrong
  10. 10.17 × 16 =
  11. 11.5% of 480 =
  12. 12.51 × 8 =
  13. 13.12 × 16 =
  14. 14.110 + 58 =
  15. 15.14 × 15 =
  16. 16.19 × 15 =
  17. 17.209 + 89 =
  18. 18.54 × 4 =
  19. 19.13 × 17 =
  20. 20.140 × 4 =
  21. 21.19 × 19 =
  22. 22.75 × 8 =
  23. 23.63 × 4 =
  24. 24.149 + 89 =
  25. 25.15 × 15 =
  26. 26.427 + 47 =
  27. 27.50% of 430 =
  28. 28.1500 ÷ 25 =
  29. 29.17 × 16 =
  30. 30.82 × 50 =
  31. 31.96 × 5 =
  32. 32.₹41.95 − ₹25.45 =
  33. 33.36 × 15 =
  34. 34.499 − 58 =
  35. 35.₹78.95 + ₹11.45 =
  36. 36.Best estimate of 81 × 18? (a) 3200 (b) 160 (c) 16000 (d) 1600
  37. 37.₹35.95 + ₹44.90 =
  38. 38.406 + 59 =
  39. 39.150 × 4 =
  40. 40.308 + 28 =

Answer key

  1. 255
  2. 79
  3. 172.5
  4. 210
  5. 375
  6. 2100
  7. 192
  8. 354
  9. correct
  10. 272
  11. 24
  12. 408
  13. 192
  14. 168
  15. 210
  16. 285
  17. 298
  18. 216
  19. 221
  20. 560
  21. 361
  22. 600
  23. 252
  24. 238
  25. 225
  26. 474
  27. 215
  28. 60
  29. 272
  30. 4100
  31. 480
  32. 16.5
  33. 540
  34. 441
  35. 90.4
  36. 1600
  37. 80.85
  38. 465
  39. 600
  40. 336

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