← Mixed speed challenge lesson New set →

Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 627 · 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. 1.17 × 15 =
  2. 2.13 × 19 =
  3. 3.273 + 37 =
  4. 4.1 + 9 + 1 + 7 + 9 =
  5. 5.₹28.05 − ₹15.10 =
  6. 6.₹8.30 + ₹2.20 =
  7. 7.514 − 99 =
  8. 8.7 + 1 + 1 + 3 + 9 =
  9. 9.24 × 15 =
  10. 10.5% of 340 =
  11. 11.63 + 69 + 15 + 33 =
  12. 12.91² =
  13. 13.8 × 15 =
  14. 14.₹20.40 + ₹22.60 =
  15. 15.5 + 6 + 4 + 6 =
  16. 16.7 × 15 =
  17. 17.21² =
  18. 18.Check with nines: 476 + 715 = 1188. Correct or wrong? (a) wrong (b) correct
  19. 19.461 − 18 =
  20. 20.44 × 4 =
  21. 21.88 × 5 =
  22. 22.860 ÷ 5 =
  23. 23.209 − 99 =
  24. 24.338 + 68 =
  25. 25.17 × 19 =
  26. 26.20% of 860 =
  27. 27.91² =
  28. 28.₹12.90 + ₹4.45 =
  29. 29.21 + 88 + 19 + 67 =
  30. 30.60 × 8 =
  31. 31.37 × 15 =
  32. 32.425 ÷ 25 =
  33. 33.65 + 26 + 84 + 55 =
  34. 34.7 + 3 + 1 + 1 + 7 =
  35. 35.31² =
  36. 36.Best estimate of 88 × 18? (a) 1800 (b) 3600 (c) 180 (d) 18000
  37. 37.25% of 120 =
  38. 38.19² =
  39. 39.179 − 97 =
  40. 40.561 − 87 =

Answer key

  1. 255
  2. 247
  3. 310
  4. 27
  5. 12.95
  6. 10.5
  7. 415
  8. 21
  9. 360
  10. 17
  11. 180
  12. 8281
  13. 120
  14. 43
  15. 21
  16. 105
  17. 441
  18. wrong
  19. 443
  20. 176
  21. 440
  22. 172
  23. 110
  24. 406
  25. 323
  26. 172
  27. 8281
  28. 17.35
  29. 195
  30. 480
  31. 555
  32. 17
  33. 230
  34. 19
  35. 961
  36. 1800
  37. 30
  38. 361
  39. 82
  40. 474

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