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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 774 · 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. 1.59 + 75 + 40 + 68 =
  2. 2.132 × 4 =
  3. 3.34 + 70 + 47 + 78 =
  4. 4.86 + 72 + 31 + 60 =
  5. 5.31 × 50 =
  6. 6.39 × 15 =
  7. 7.₹74.30 + ₹14.70 =
  8. 8.91² =
  9. 9.50 + 61 + 55 + 28 =
  10. 10.45 × 8 =
  11. 11.₹44.55 + ₹37.05 =
  12. 12.88 × 4 =
  13. 13.452 + 38 =
  14. 14.225 ÷ 5 =
  15. 15.48 × 15 =
  16. 16.2 + 1 + 3 + 1 + 8 =
  17. 17.₹75.40 + ₹10.45 =
  18. 18.3 + 1 + 1 + 9 =
  19. 19.15 × 19 =
  20. 20.Check with nines: 578 + 978 = 1556. Correct or wrong? (a) correct (b) wrong
  21. 21.104 + 47 =
  22. 22.9 + 1 + 7 + 7 =
  23. 23.438 + 47 =
  24. 24.29² =
  25. 25.₹98.75 − ₹4.75 =
  26. 26.41² =
  27. 27.8 + 9 + 1 + 2 =
  28. 28.57 × 4 =
  29. 29.5% of 450 =
  30. 30.307 − 28 =
  31. 31.511 − 26 =
  32. 32.354 − 29 =
  33. 33.Best estimate of 301 × 6? (a) 18000 (b) 180 (c) 3600 (d) 1800
  34. 34.Best estimate of 62 × 28? (a) 1800 (b) 3600 (c) 18000 (d) 180
  35. 35.44 + 33 + 68 + 34 =
  36. 36.89 × 5 =
  37. 37.₹86.15 + ₹5.40 =
  38. 38.427 + 77 =
  39. 39.31² =
  40. 40.₹74.35 + ₹32.30 =

Answer key

  1. 242
  2. 528
  3. 229
  4. 249
  5. 1550
  6. 585
  7. 89
  8. 8281
  9. 194
  10. 360
  11. 81.6
  12. 352
  13. 490
  14. 45
  15. 720
  16. 15
  17. 85.85
  18. 14
  19. 285
  20. correct
  21. 151
  22. 24
  23. 485
  24. 841
  25. 94
  26. 1681
  27. 20
  28. 228
  29. 22.5
  30. 279
  31. 485
  32. 325
  33. 1800
  34. 1800
  35. 179
  36. 445
  37. 91.55
  38. 504
  39. 961
  40. 106.65

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