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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 805 · 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.₹79.70 − ₹11.95 =
  2. 2.459 + 59 =
  3. 3.418 + 48 =
  4. 4.5% of 700 =
  5. 5.61 − 19 =
  6. 6.5 × 15 =
  7. 7.₹94.80 − ₹13.50 =
  8. 8.483 − 19 =
  9. 9.Best estimate of 38 × 18? (a) 80 (b) 800 (c) 1600 (d) 8000
  10. 10.98 + 67 =
  11. 11.13 × 15 =
  12. 12.1650 ÷ 50 =
  13. 13.1750 ÷ 50 =
  14. 14.6 + 2 + 8 + 9 =
  15. 15.3 + 4 + 6 + 6 =
  16. 16.131 × 4 =
  17. 17.440 + 77 =
  18. 18.17 × 8 =
  19. 19.Best estimate of 602 × 3? (a) 18000 (b) 1800 (c) 180 (d) 3600
  20. 20.19² =
  21. 21.5% of 150 =
  22. 22.₹41.60 − ₹30.10 =
  23. 23.₹74.60 − ₹3.60 =
  24. 24.440 − 16 =
  25. 25.45 + 24 + 66 + 29 =
  26. 26.Check with nines: 460 + 861 = 1321. Correct or wrong? (a) wrong (b) correct
  27. 27.Best estimate of 702 × 9? (a) 63000 (b) 6300 (c) 630 (d) 12600
  28. 28.750 ÷ 25 =
  29. 29.8 + 9 + 1 + 5 + 4 =
  30. 30.10% of 730 =
  31. 31.12 × 17 =
  32. 32.67 + 80 + 84 + 55 =
  33. 33.48 × 5 =
  34. 34.49 × 4 =
  35. 35.145 × 4 =
  36. 36.25% of 730 =
  37. 37.45 + 80 + 61 + 51 =
  38. 38.1650 ÷ 50 =
  39. 39.400 ÷ 50 =
  40. 40.64 + 20 + 79 + 87 =

Answer key

  1. 67.75
  2. 518
  3. 466
  4. 35
  5. 42
  6. 75
  7. 81.3
  8. 464
  9. 800
  10. 165
  11. 195
  12. 33
  13. 35
  14. 25
  15. 19
  16. 524
  17. 517
  18. 136
  19. 1800
  20. 361
  21. 7.5
  22. 11.5
  23. 71
  24. 424
  25. 164
  26. correct
  27. 6300
  28. 30
  29. 27
  30. 73
  31. 204
  32. 286
  33. 240
  34. 196
  35. 580
  36. 182.5
  37. 237
  38. 33
  39. 8
  40. 250

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