← Mixed speed challenge lesson New set →

Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 804 · 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. 1.44 × 15 =
  2. 2.13 × 16 =
  3. 3.₹49.10 + ₹12.95 =
  4. 4.414 + 37 =
  5. 5.32 × 8 =
  6. 6.9 × 15 =
  7. 7.₹24.55 − ₹5.50 =
  8. 8.29² =
  9. 9.5 + 8 + 1 + 2 =
  10. 10.57 × 15 =
  11. 11.50 + 43 + 14 + 23 =
  12. 12.₹81.80 + ₹15.40 =
  13. 13.54 × 4 =
  14. 14.9 + 3 + 6 + 4 + 2 =
  15. 15.35 × 50 =
  16. 16.19² =
  17. 17.16 × 14 =
  18. 18.₹51.85 − ₹27.55 =
  19. 19.214 − 89 =
  20. 20.Best estimate of 41 × 39? (a) 160 (b) 16000 (c) 1600 (d) 3200
  21. 21.29 × 8 =
  22. 22.18 × 12 =
  23. 23.7 + 6 + 9 + 2 + 3 =
  24. 24.53 × 15 =
  25. 25.29² =
  26. 26.₹71.05 + ₹21.15 =
  27. 27.374 + 49 =
  28. 28.1% of 100 =
  29. 29.32 × 8 =
  30. 30.1350 ÷ 25 =
  31. 31.2 + 8 + 2 + 4 =
  32. 32.494 − 96 =
  33. 33.82 × 50 =
  34. 34.25 × 15 =
  35. 35.10% of 20 =
  36. 36.Best estimate of 102 × 6? (a) 60 (b) 1200 (c) 6000 (d) 600
  37. 37.3 + 3 + 7 + 3 =
  38. 38.31² =
  39. 39.40 × 8 =
  40. 40.590 ÷ 5 =

Answer key

  1. 660
  2. 208
  3. 62.05
  4. 451
  5. 256
  6. 135
  7. 19.05
  8. 841
  9. 16
  10. 855
  11. 130
  12. 97.2
  13. 216
  14. 24
  15. 1750
  16. 361
  17. 224
  18. 24.3
  19. 125
  20. 1600
  21. 232
  22. 216
  23. 27
  24. 795
  25. 841
  26. 92.2
  27. 423
  28. 1
  29. 256
  30. 54
  31. 16
  32. 398
  33. 4100
  34. 375
  35. 2
  36. 600
  37. 16
  38. 961
  39. 320
  40. 118

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