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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 518 · 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. 1.1% of 810 =
  2. 2.20% of 200 =
  3. 3.11 × 15 =
  4. 4.83 + 71 + 42 + 70 =
  5. 5.185 − 98 =
  6. 6.19 × 13 =
  7. 7.37 × 4 =
  8. 8.275 − 97 =
  9. 9.12 × 15 =
  10. 10.179 − 16 =
  11. 11.563 − 28 =
  12. 12.41² =
  13. 13.21 × 8 =
  14. 14.1300 ÷ 50 =
  15. 15.18 + 83 + 22 + 44 =
  16. 16.₹95.50 − ₹3.40 =
  17. 17.82 + 69 + 25 + 65 =
  18. 18.325 ÷ 5 =
  19. 19.95 × 50 =
  20. 20.₹57.20 − ₹46.15 =
  21. 21.29² =
  22. 22.29 × 15 =
  23. 23.Best estimate of 797 × 4? (a) 6400 (b) 3200 (c) 32000 (d) 320
  24. 24.₹32.10 − ₹7.25 =
  25. 25.28 × 4 =
  26. 26.1750 ÷ 50 =
  27. 27.₹87.95 + ₹5.55 =
  28. 28.Best estimate of 42 × 62? (a) 24000 (b) 240 (c) 4800 (d) 2400
  29. 29.17 × 11 =
  30. 30.217 + 17 =
  31. 31.29 × 5 =
  32. 32.33 × 8 =
  33. 33.120 × 4 =
  34. 34.59² =
  35. 35.57 × 5 =
  36. 36.54 + 34 + 62 + 62 =
  37. 37.58 + 54 + 75 + 13 =
  38. 38.46 × 5 =
  39. 39.403 − 16 =
  40. 40.Best estimate of 799 × 6? (a) 9600 (b) 48000 (c) 480 (d) 4800

Answer key

  1. 8.1
  2. 40
  3. 165
  4. 266
  5. 87
  6. 247
  7. 148
  8. 178
  9. 180
  10. 163
  11. 535
  12. 1681
  13. 168
  14. 26
  15. 167
  16. 92.1
  17. 241
  18. 65
  19. 4750
  20. 11.05
  21. 841
  22. 435
  23. 3200
  24. 24.85
  25. 112
  26. 35
  27. 93.5
  28. 2400
  29. 187
  30. 234
  31. 145
  32. 264
  33. 480
  34. 3481
  35. 285
  36. 212
  37. 200
  38. 230
  39. 387
  40. 4800

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