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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 763 · 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. 1.15% of 900 =
  2. 2.46 × 5 =
  3. 3.55 + 17 =
  4. 4.15% of 460 =
  5. 5.9 + 9 + 1 + 3 =
  6. 6.3 + 9 + 1 + 1 =
  7. 7.142 − 37 =
  8. 8.6 + 3 + 1 + 7 =
  9. 9.₹98.50 − ₹21.75 =
  10. 10.363 − 26 =
  11. 11.Check with nines: 807 + 536 = 1346. Correct or wrong? (a) wrong (b) correct
  12. 12.395 + 78 =
  13. 13.5 + 5 + 8 + 1 =
  14. 14.2 + 7 + 3 + 7 + 8 =
  15. 15.₹67.65 + ₹40.35 =
  16. 16.Check with nines: 76 × 71 = 5396. Correct or wrong? (a) wrong (b) correct
  17. 17.₹56.50 + ₹9.70 =
  18. 18.Check with nines: 295 + 160 = 455. Correct or wrong? (a) correct (b) wrong
  19. 19.67 × 50 =
  20. 20.38 × 50 =
  21. 21.126 × 4 =
  22. 22.41 × 5 =
  23. 23.1 + 6 + 9 + 6 + 7 =
  24. 24.591 − 86 =
  25. 25.44 × 50 =
  26. 26.62 × 8 =
  27. 27.78 + 21 + 80 + 81 =
  28. 28.₹12.35 + ₹11.60 =
  29. 29.19 × 4 =
  30. 30.18 × 5 =
  31. 31.10 × 15 =
  32. 32.50% of 20 =
  33. 33.471 − 17 =
  34. 34.5 + 5 + 5 + 3 + 7 =
  35. 35.5 + 1 + 9 + 6 =
  36. 36.124 × 4 =
  37. 37.258 + 59 =
  38. 38.1650 ÷ 50 =
  39. 39.₹69.10 + ₹26.75 =
  40. 40.Check with nines: 38 × 75 = 2850. Correct or wrong? (a) wrong (b) correct

Answer key

  1. 135
  2. 230
  3. 72
  4. 69
  5. 22
  6. 14
  7. 105
  8. 17
  9. 76.75
  10. 337
  11. wrong
  12. 473
  13. 19
  14. 27
  15. 108
  16. correct
  17. 66.2
  18. correct
  19. 3350
  20. 1900
  21. 504
  22. 205
  23. 29
  24. 505
  25. 2200
  26. 496
  27. 260
  28. 23.95
  29. 76
  30. 90
  31. 150
  32. 10
  33. 454
  34. 25
  35. 21
  36. 496
  37. 317
  38. 33
  39. 95.85
  40. correct

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