← Mixed speed challenge lesson New set →

Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 337 · 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. 1.50% of 630 =
  2. 2.Check with nines: 14 × 65 = 910. Correct or wrong? (a) wrong (b) correct
  3. 3.19 × 16 =
  4. 4.265 − 46 =
  5. 5.5% of 50 =
  6. 6.79 × 5 =
  7. 7.Check with nines: 16 × 82 = 1304. Correct or wrong? (a) wrong (b) correct
  8. 8.49² =
  9. 9.74 + 30 + 57 + 48 =
  10. 10.₹35.45 − ₹28.05 =
  11. 11.21 × 8 =
  12. 12.80 − 39 =
  13. 13.12 × 15 =
  14. 14.5 + 2 + 4 + 6 =
  15. 15.5 + 1 + 9 + 5 =
  16. 16.₹35.15 + ₹18.20 =
  17. 17.444 + 59 =
  18. 18.₹82.35 − ₹24.60 =
  19. 19.63 × 5 =
  20. 20.50% of 760 =
  21. 21.31² =
  22. 22.25% of 220 =
  23. 23.74 × 4 =
  24. 24.222 + 87 =
  25. 25.1 + 7 + 5 + 9 =
  26. 26.215 ÷ 5 =
  27. 27.₹97.45 − ₹23.20 =
  28. 28.6 + 3 + 5 + 7 + 3 =
  29. 29.73 + 19 + 15 + 70 =
  30. 30.322 + 17 =
  31. 31.9 + 1 + 1 + 9 =
  32. 32.25 × 15 =
  33. 33.89 + 67 =
  34. 34.50 + 18 + 34 + 31 =
  35. 35.Best estimate of 29 × 91? (a) 270 (b) 27000 (c) 5400 (d) 2700
  36. 36.350 − 29 =
  37. 37.26 × 8 =
  38. 38.69 + 57 =
  39. 39.1150 ÷ 25 =
  40. 40.₹37.70 + ₹49.45 =

Answer key

  1. 315
  2. correct
  3. 304
  4. 219
  5. 2.5
  6. 395
  7. wrong
  8. 2401
  9. 209
  10. 7.4
  11. 168
  12. 41
  13. 180
  14. 17
  15. 20
  16. 53.35
  17. 503
  18. 57.75
  19. 315
  20. 380
  21. 961
  22. 55
  23. 296
  24. 309
  25. 22
  26. 43
  27. 74.25
  28. 24
  29. 177
  30. 339
  31. 20
  32. 375
  33. 156
  34. 133
  35. 2700
  36. 321
  37. 208
  38. 126
  39. 46
  40. 87.15

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