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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 982 · 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. 1.25% of 460 =
  2. 2.1% of 240 =
  3. 3.1 + 9 + 5 + 2 =
  4. 4.15 × 15 =
  5. 5.1% of 310 =
  6. 6.42 × 15 =
  7. 7.82 − 18 =
  8. 8.29 + 85 + 26 + 47 =
  9. 9.5 × 15 =
  10. 10.39² =
  11. 11.10% of 590 =
  12. 12.20 + 59 + 45 + 89 =
  13. 13.750 ÷ 50 =
  14. 14.20% of 450 =
  15. 15.81 × 50 =
  16. 16.311 + 67 =
  17. 17.22 + 66 + 30 + 11 =
  18. 18.375 ÷ 25 =
  19. 19.₹53.20 + ₹27.20 =
  20. 20.44 × 4 =
  21. 21.445 − 29 =
  22. 22.42 × 5 =
  23. 23.Best estimate of 39 × 69? (a) 5600 (b) 28000 (c) 280 (d) 2800
  24. 24.337 − 77 =
  25. 25.₹64.20 − ₹46.55 =
  26. 26.84 + 55 + 83 + 29 =
  27. 27.25 + 49 + 84 + 88 =
  28. 28.Best estimate of 49 × 31? (a) 3000 (b) 1500 (c) 150 (d) 15000
  29. 29.19² =
  30. 30.39 + 58 + 19 + 80 =
  31. 31.153 × 4 =
  32. 32.153 − 88 =
  33. 33.89² =
  34. 34.₹46.30 + ₹7.45 =
  35. 35.6 + 4 + 6 + 4 =
  36. 36.₹17.55 − ₹9.30 =
  37. 37.7 + 8 + 5 + 3 + 3 =
  38. 38.49² =
  39. 39.88 + 79 =
  40. 40.4 + 2 + 7 + 7 + 6 =

Answer key

  1. 115
  2. 2.4
  3. 17
  4. 225
  5. 3.1
  6. 630
  7. 64
  8. 187
  9. 75
  10. 1521
  11. 59
  12. 213
  13. 15
  14. 90
  15. 4050
  16. 378
  17. 129
  18. 15
  19. 80.4
  20. 176
  21. 416
  22. 210
  23. 2800
  24. 260
  25. 17.65
  26. 251
  27. 246
  28. 1500
  29. 361
  30. 196
  31. 612
  32. 65
  33. 7921
  34. 53.75
  35. 20
  36. 8.25
  37. 26
  38. 2401
  39. 167
  40. 26

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