← Mixed speed challenge lesson New set →

Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 214 · 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. 1.92 + 87 =
  2. 2.25% of 90 =
  3. 3.85 ÷ 5 =
  4. 4.₹38.60 + ₹44.35 =
  5. 5.18 × 14 =
  6. 6.421 − 59 =
  7. 7.59 + 15 + 14 + 15 =
  8. 8.81² =
  9. 9.25 + 29 =
  10. 10.51 × 15 =
  11. 11.118 × 4 =
  12. 12.₹82.50 − ₹49.65 =
  13. 13.Best estimate of 297 × 5? (a) 1500 (b) 3000 (c) 150 (d) 15000
  14. 14.300 ÷ 50 =
  15. 15.1750 ÷ 50 =
  16. 16.52 × 8 =
  17. 17.1950 ÷ 50 =
  18. 18.Check with nines: 44 × 40 = 1762. Correct or wrong? (a) correct (b) wrong
  19. 19.17 + 41 + 27 + 15 =
  20. 20.940 ÷ 5 =
  21. 21.89² =
  22. 22.48 × 15 =
  23. 23.25 × 15 =
  24. 24.11 × 19 =
  25. 25.Best estimate of 403 × 7? (a) 2800 (b) 280 (c) 5600 (d) 28000
  26. 26.19² =
  27. 27.Best estimate of 797 × 8? (a) 64000 (b) 12800 (c) 6400 (d) 640
  28. 28.119 − 78 =
  29. 29.₹75.45 + ₹46.45 =
  30. 30.109 + 87 =
  31. 31.58 × 8 =
  32. 32.15% of 260 =
  33. 33.25 × 50 =
  34. 34.55 × 15 =
  35. 35.Check with nines: 62 × 78 = 4836. Correct or wrong? (a) correct (b) wrong
  36. 36.24 × 15 =
  37. 37.91 − 67 =
  38. 38.₹8.25 + ₹47.60 =
  39. 39.2 + 8 + 2 + 8 =
  40. 40.₹31.30 − ₹19.75 =

Answer key

  1. 179
  2. 22.5
  3. 17
  4. 82.95
  5. 252
  6. 362
  7. 103
  8. 6561
  9. 54
  10. 765
  11. 472
  12. 32.85
  13. 1500
  14. 6
  15. 35
  16. 416
  17. 39
  18. wrong
  19. 100
  20. 188
  21. 7921
  22. 720
  23. 375
  24. 209
  25. 2800
  26. 361
  27. 6400
  28. 41
  29. 121.9
  30. 196
  31. 464
  32. 39
  33. 1250
  34. 825
  35. correct
  36. 360
  37. 24
  38. 55.85
  39. 20
  40. 11.55

Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths