← × 15: ten plus half lesson New set →

Multiply by 15 Worksheet

Speed calculation lesson 8: × 15: ten plus half · Set 485 · 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. 1.13 × 15 =
  2. 2.43 × 15 =
  3. 3.39 × 15 =
  4. 4.49 × 15 =
  5. 5.40 × 15 =
  6. 6.18 × 15 =
  7. 7.39 × 15 =
  8. 8.53 × 15 =
  9. 9.17 × 15 =
  10. 10.34 × 15 =
  11. 11.9 × 15 =
  12. 12.23 × 15 =
  13. 13.17 × 15 =
  14. 14.53 × 15 =
  15. 15.33 × 15 =
  16. 16.28 × 15 =
  17. 17.11 × 15 =
  18. 18.37 × 15 =
  19. 19.15 × 15 =
  20. 20.23 × 15 =
  21. 21.55 × 15 =
  22. 22.32 × 15 =
  23. 23.15 × 15 =
  24. 24.4 × 15 =
  25. 25.47 × 15 =
  26. 26.8 × 15 =
  27. 27.37 × 15 =
  28. 28.19 × 15 =
  29. 29.4 × 15 =
  30. 30.12 × 15 =
  31. 31.16 × 15 =
  32. 32.22 × 15 =
  33. 33.19 × 15 =
  34. 34.51 × 15 =
  35. 35.54 × 15 =
  36. 36.22 × 15 =
  37. 37.18 × 15 =
  38. 38.29 × 15 =
  39. 39.59 × 15 =
  40. 40.44 × 15 =

Answer key

  1. 195
  2. 645
  3. 585
  4. 735
  5. 600
  6. 270
  7. 585
  8. 795
  9. 255
  10. 510
  11. 135
  12. 345
  13. 255
  14. 795
  15. 495
  16. 420
  17. 165
  18. 555
  19. 225
  20. 345
  21. 825
  22. 480
  23. 225
  24. 60
  25. 705
  26. 120
  27. 555
  28. 285
  29. 60
  30. 180
  31. 240
  32. 330
  33. 285
  34. 765
  35. 810
  36. 330
  37. 270
  38. 435
  39. 885
  40. 660

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