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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 172 · 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 150 =
  2. 2.41² =
  3. 3.58 × 50 =
  4. 4.107 + 67 =
  5. 5.5 + 8 + 7 + 2 + 2 =
  6. 6.15 + 38 + 13 + 25 =
  7. 7.52 × 50 =
  8. 8.33 + 41 + 89 + 29 =
  9. 9.45 × 15 =
  10. 10.325 − 19 =
  11. 11.61 × 8 =
  12. 12.8 + 8 + 7 + 2 + 9 =
  13. 13.17 + 26 + 54 + 84 =
  14. 14.63 × 4 =
  15. 15.49² =
  16. 16.Best estimate of 38 × 51? (a) 20000 (b) 200 (c) 2000 (d) 4000
  17. 17.92 × 4 =
  18. 18.108 − 66 =
  19. 19.1 + 9 + 1 + 8 =
  20. 20.₹75.15 + ₹35.50 =
  21. 21.79² =
  22. 22.₹35.95 − ₹26.15 =
  23. 23.12 × 17 =
  24. 24.150 ÷ 25 =
  25. 25.64 × 5 =
  26. 26.89² =
  27. 27.89² =
  28. 28.2 + 7 + 8 + 3 + 8 =
  29. 29.79 + 50 + 42 + 32 =
  30. 30.Best estimate of 82 × 22? (a) 1600 (b) 3200 (c) 16000 (d) 160
  31. 31.77 + 49 + 84 + 71 =
  32. 32.6 + 5 + 9 + 1 =
  33. 33.508 − 38 =
  34. 34.125 ÷ 25 =
  35. 35.18 + 32 + 47 + 87 =
  36. 36.53 × 15 =
  37. 37.495 + 49 =
  38. 38.Best estimate of 803 × 3? (a) 240 (b) 4800 (c) 24000 (d) 2400
  39. 39.5% of 340 =
  40. 40.Best estimate of 32 × 31? (a) 900 (b) 1800 (c) 9000 (d) 90

Answer key

  1. 75
  2. 1681
  3. 2900
  4. 174
  5. 24
  6. 91
  7. 2600
  8. 192
  9. 675
  10. 306
  11. 488
  12. 34
  13. 181
  14. 252
  15. 2401
  16. 2000
  17. 368
  18. 42
  19. 19
  20. 110.65
  21. 6241
  22. 9.8
  23. 204
  24. 6
  25. 320
  26. 7921
  27. 7921
  28. 28
  29. 203
  30. 1600
  31. 281
  32. 21
  33. 470
  34. 5
  35. 184
  36. 795
  37. 544
  38. 2400
  39. 17
  40. 900

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