← Mixed speed challenge lesson New set →

Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 630 · 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. 1.69² =
  2. 2.301 − 47 =
  3. 3.21² =
  4. 4.Best estimate of 303 × 4? (a) 120 (b) 2400 (c) 1200 (d) 12000
  5. 5.364 + 58 =
  6. 6.91 − 46 =
  7. 7.Check with nines: 382 + 833 = 1215. Correct or wrong? (a) wrong (b) correct
  8. 8.81 × 4 =
  9. 9.244 − 36 =
  10. 10.1% of 780 =
  11. 11.299 − 27 =
  12. 12.62 + 15 + 80 + 52 =
  13. 13.5 + 3 + 8 + 1 + 5 =
  14. 14.31 × 15 =
  15. 15.482 − 78 =
  16. 16.5 + 7 + 2 + 1 + 9 =
  17. 17.9 + 4 + 7 + 5 + 1 =
  18. 18.51² =
  19. 19.25% of 340 =
  20. 20.92 + 27 =
  21. 21.58 − 48 =
  22. 22.48 × 5 =
  23. 23.20 + 49 + 79 + 51 =
  24. 24.20% of 220 =
  25. 25.11 × 14 =
  26. 26.75 × 5 =
  27. 27.456 + 77 =
  28. 28.₹53.30 − ₹37.65 =
  29. 29.31² =
  30. 30.464 − 48 =
  31. 31.₹58.90 − ₹34.15 =
  32. 32.10% of 420 =
  33. 33.56 + 99 =
  34. 34.Check with nines: 58 × 18 = 1044. Correct or wrong? (a) wrong (b) correct
  35. 35.443 − 26 =
  36. 36.415 ÷ 5 =
  37. 37.15% of 490 =
  38. 38.21² =
  39. 39.Check with nines: 15 × 69 = 1033. Correct or wrong? (a) wrong (b) correct
  40. 40.9 + 7 + 1 + 4 + 5 =

Answer key

  1. 4761
  2. 254
  3. 441
  4. 1200
  5. 422
  6. 45
  7. correct
  8. 324
  9. 208
  10. 7.8
  11. 272
  12. 209
  13. 22
  14. 465
  15. 404
  16. 24
  17. 26
  18. 2601
  19. 85
  20. 119
  21. 10
  22. 240
  23. 199
  24. 44
  25. 154
  26. 375
  27. 533
  28. 15.65
  29. 961
  30. 416
  31. 24.75
  32. 42
  33. 155
  34. correct
  35. 417
  36. 83
  37. 73.5
  38. 441
  39. wrong
  40. 26

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