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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 795 · 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.Best estimate of 498 × 8? (a) 40000 (b) 400 (c) 8000 (d) 4000
  2. 2.11 + 37 + 88 + 40 =
  3. 3.51 + 39 =
  4. 4.₹89.50 + ₹32.90 =
  5. 5.79² =
  6. 6.16 × 18 =
  7. 7.₹21.70 − ₹4.40 =
  8. 8.925 ÷ 25 =
  9. 9.14 × 14 =
  10. 10.31 + 42 + 83 + 68 =
  11. 11.18 × 13 =
  12. 12.9 + 3 + 3 + 1 + 7 =
  13. 13.57 × 15 =
  14. 14.₹74.50 − ₹15.30 =
  15. 15.50% of 850 =
  16. 16.21 × 15 =
  17. 17.440 ÷ 5 =
  18. 18.280 − 16 =
  19. 19.11 + 74 + 68 + 54 =
  20. 20.28 × 5 =
  21. 21.505 − 87 =
  22. 22.521 − 48 =
  23. 23.197 − 48 =
  24. 24.44 × 15 =
  25. 25.13 × 12 =
  26. 26.Best estimate of 19 × 29? (a) 60 (b) 6000 (c) 1200 (d) 600
  27. 27.13 + 64 + 54 + 15 =
  28. 28.₹76.85 − ₹11.60 =
  29. 29.8 + 4 + 4 + 7 + 2 =
  30. 30.61² =
  31. 31.17 + 50 + 86 + 49 =
  32. 32.20% of 40 =
  33. 33.85 × 4 =
  34. 34.15% of 120 =
  35. 35.5% of 130 =
  36. 36.460 ÷ 5 =
  37. 37.11 × 14 =
  38. 38.14 + 18 + 35 + 87 =
  39. 39.5% of 860 =
  40. 40.1350 ÷ 25 =

Answer key

  1. 4000
  2. 176
  3. 90
  4. 122.4
  5. 6241
  6. 288
  7. 17.3
  8. 37
  9. 196
  10. 224
  11. 234
  12. 23
  13. 855
  14. 59.2
  15. 425
  16. 315
  17. 88
  18. 264
  19. 207
  20. 140
  21. 418
  22. 473
  23. 149
  24. 660
  25. 156
  26. 600
  27. 146
  28. 65.25
  29. 25
  30. 3721
  31. 202
  32. 8
  33. 340
  34. 18
  35. 6.5
  36. 92
  37. 154
  38. 154
  39. 43
  40. 54

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