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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 772 · 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. 1.131 × 4 =
  2. 2.15% of 440 =
  3. 3.12 × 17 =
  4. 4.37 × 5 =
  5. 5.10% of 600 =
  6. 6.237 − 39 =
  7. 7.54 × 50 =
  8. 8.19 × 15 =
  9. 9.280 + 28 =
  10. 10.246 − 39 =
  11. 11.28 + 46 + 17 + 28 =
  12. 12.81² =
  13. 13.6 + 8 + 4 + 8 =
  14. 14.₹44.75 − ₹15.50 =
  15. 15.79² =
  16. 16.30 × 50 =
  17. 17.15 × 12 =
  18. 18.325 ÷ 25 =
  19. 19.Check with nines: 25 × 23 = 575. Correct or wrong? (a) wrong (b) correct
  20. 20.675 ÷ 25 =
  21. 21.Check with nines: 97 × 89 = 8633. Correct or wrong? (a) wrong (b) correct
  22. 22.700 ÷ 50 =
  23. 23.22 × 15 =
  24. 24.21 × 15 =
  25. 25.69² =
  26. 26.₹84.10 + ₹12.20 =
  27. 27.319 + 89 =
  28. 28.31² =
  29. 29.487 + 97 =
  30. 30.168 + 68 =
  31. 31.₹32.20 − ₹10.65 =
  32. 32.118 − 26 =
  33. 33.466 − 26 =
  34. 34.25% of 590 =
  35. 35.1% of 190 =
  36. 36.Best estimate of 28 × 61? (a) 18000 (b) 3600 (c) 180 (d) 1800
  37. 37.9 + 4 + 7 + 3 + 3 =
  38. 38.46 × 5 =
  39. 39.₹77.10 − ₹33.80 =
  40. 40.₹73.15 + ₹17.25 =

Answer key

  1. 524
  2. 66
  3. 204
  4. 185
  5. 60
  6. 198
  7. 2700
  8. 285
  9. 308
  10. 207
  11. 119
  12. 6561
  13. 26
  14. 29.25
  15. 6241
  16. 1500
  17. 180
  18. 13
  19. correct
  20. 27
  21. correct
  22. 14
  23. 330
  24. 315
  25. 4761
  26. 96.3
  27. 408
  28. 961
  29. 584
  30. 236
  31. 21.55
  32. 92
  33. 440
  34. 147.5
  35. 1.9
  36. 1800
  37. 26
  38. 230
  39. 43.3
  40. 90.4

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