← × 15: ten plus half lesson New set →

Multiply by 15 Worksheet

Speed calculation lesson 8: × 15: ten plus half · Set 109 · 40 questions
TalentJR

The fast method (Ten and half again): Multiply by 10: 46 → 460. Halve that answer: half of 460 is 230. Add the two: 460 + 230 = 690.

NameDateTime takenScore ___ / 40
  1. 1.9 × 15 =
  2. 2.39 × 15 =
  3. 3.54 × 15 =
  4. 4.43 × 15 =
  5. 5.63 × 15 =
  6. 6.7 × 15 =
  7. 7.47 × 15 =
  8. 8.39 × 15 =
  9. 9.33 × 15 =
  10. 10.48 × 15 =
  11. 11.47 × 15 =
  12. 12.35 × 15 =
  13. 13.18 × 15 =
  14. 14.30 × 15 =
  15. 15.26 × 15 =
  16. 16.21 × 15 =
  17. 17.44 × 15 =
  18. 18.45 × 15 =
  19. 19.27 × 15 =
  20. 20.18 × 15 =
  21. 21.32 × 15 =
  22. 22.45 × 15 =
  23. 23.25 × 15 =
  24. 24.54 × 15 =
  25. 25.7 × 15 =
  26. 26.4 × 15 =
  27. 27.10 × 15 =
  28. 28.23 × 15 =
  29. 29.49 × 15 =
  30. 30.45 × 15 =
  31. 31.56 × 15 =
  32. 32.25 × 15 =
  33. 33.33 × 15 =
  34. 34.17 × 15 =
  35. 35.38 × 15 =
  36. 36.15 × 15 =
  37. 37.36 × 15 =
  38. 38.22 × 15 =
  39. 39.19 × 15 =
  40. 40.55 × 15 =

Answer key

  1. 135
  2. 585
  3. 810
  4. 645
  5. 945
  6. 105
  7. 705
  8. 585
  9. 495
  10. 720
  11. 705
  12. 525
  13. 270
  14. 450
  15. 390
  16. 315
  17. 660
  18. 675
  19. 405
  20. 270
  21. 480
  22. 675
  23. 375
  24. 810
  25. 105
  26. 60
  27. 150
  28. 345
  29. 735
  30. 675
  31. 840
  32. 375
  33. 495
  34. 255
  35. 570
  36. 225
  37. 540
  38. 330
  39. 285
  40. 825

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