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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 361 · 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. 1.5% of 300 =
  2. 2.66 + 12 + 68 + 33 =
  3. 3.1 + 2 + 9 + 3 =
  4. 4.16 × 13 =
  5. 5.81 × 4 =
  6. 6.245 ÷ 5 =
  7. 7.23 + 21 + 28 + 16 =
  8. 8.8 + 4 + 9 + 1 =
  9. 9.47 × 8 =
  10. 10.48 × 50 =
  11. 11.25% of 210 =
  12. 12.16 × 14 =
  13. 13.7 × 15 =
  14. 14.6 + 4 + 6 + 9 =
  15. 15.68 × 4 =
  16. 16.5% of 170 =
  17. 17.55 × 4 =
  18. 18.31² =
  19. 19.₹91.90 − ₹7.95 =
  20. 20.1% of 250 =
  21. 21.73 × 4 =
  22. 22.80 × 5 =
  23. 23.975 ÷ 5 =
  24. 24.68 × 4 =
  25. 25.41² =
  26. 26.₹29.20 + ₹21.55 =
  27. 27.14 × 50 =
  28. 28.41² =
  29. 29.340 + 98 =
  30. 30.20 × 15 =
  31. 31.37 × 15 =
  32. 32.Check with nines: 90 × 69 = 6210. Correct or wrong? (a) wrong (b) correct
  33. 33.69² =
  34. 34.91² =
  35. 35.Best estimate of 298 × 9? (a) 5400 (b) 270 (c) 2700 (d) 27000
  36. 36.94 × 50 =
  37. 37.Check with nines: 15 × 72 = 1080. Correct or wrong? (a) correct (b) wrong
  38. 38.398 + 77 =
  39. 39.251 − 96 =
  40. 40.31² =

Answer key

  1. 15
  2. 179
  3. 15
  4. 208
  5. 324
  6. 49
  7. 88
  8. 22
  9. 376
  10. 2400
  11. 52.5
  12. 224
  13. 105
  14. 25
  15. 272
  16. 8.5
  17. 220
  18. 961
  19. 83.95
  20. 2.5
  21. 292
  22. 400
  23. 195
  24. 272
  25. 1681
  26. 50.75
  27. 700
  28. 1681
  29. 438
  30. 300
  31. 555
  32. correct
  33. 4761
  34. 8281
  35. 2700
  36. 4700
  37. correct
  38. 475
  39. 155
  40. 961

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