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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 7 · 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. 1.51 × 15 =
  2. 2.91² =
  3. 3.660 ÷ 5 =
  4. 4.10 × 15 =
  5. 5.7 + 3 + 7 + 5 =
  6. 6.84 × 5 =
  7. 7.₹48.65 + ₹14.05 =
  8. 8.Best estimate of 903 × 6? (a) 10800 (b) 54000 (c) 540 (d) 5400
  9. 9.35 × 15 =
  10. 10.5 + 3 + 8 + 5 + 6 =
  11. 11.Check with nines: 865 + 675 = 1540. Correct or wrong? (a) wrong (b) correct
  12. 12.64 × 5 =
  13. 13.209 − 48 =
  14. 14.37 × 5 =
  15. 15.509 − 87 =
  16. 16.90 × 5 =
  17. 17.516 − 46 =
  18. 18.92 × 50 =
  19. 19.196 + 79 =
  20. 20.1% of 280 =
  21. 21.63 × 15 =
  22. 22.21 + 88 + 33 + 29 =
  23. 23.17 × 4 =
  24. 24.78 + 11 + 62 + 73 =
  25. 25.430 ÷ 5 =
  26. 26.50 × 5 =
  27. 27.478 + 39 =
  28. 28.9 + 1 + 9 + 1 =
  29. 29.₹32.65 − ₹19.05 =
  30. 30.20% of 370 =
  31. 31.95 × 50 =
  32. 32.5% of 580 =
  33. 33.42 + 83 + 28 + 87 =
  34. 34.Check with nines: 35 × 15 = 524. Correct or wrong? (a) correct (b) wrong
  35. 35.32 × 15 =
  36. 36.25% of 500 =
  37. 37.₹35.60 + ₹14.50 =
  38. 38.225 + 49 =
  39. 39.4 + 2 + 1 + 6 + 6 =
  40. 40.59 × 5 =

Answer key

  1. 765
  2. 8281
  3. 132
  4. 150
  5. 22
  6. 420
  7. 62.7
  8. 5400
  9. 525
  10. 27
  11. correct
  12. 320
  13. 161
  14. 185
  15. 422
  16. 450
  17. 470
  18. 4600
  19. 275
  20. 2.8
  21. 945
  22. 171
  23. 68
  24. 224
  25. 86
  26. 250
  27. 517
  28. 20
  29. 13.6
  30. 74
  31. 4750
  32. 29
  33. 240
  34. wrong
  35. 480
  36. 125
  37. 50.1
  38. 274
  39. 19
  40. 295

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