← × 15: ten plus half lesson New set →

Multiply by 15 Worksheet

Speed calculation lesson 8: × 15: ten plus half · Set 897 · 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. 1.35 × 15 =
  2. 2.28 × 15 =
  3. 3.33 × 15 =
  4. 4.19 × 15 =
  5. 5.20 × 15 =
  6. 6.58 × 15 =
  7. 7.48 × 15 =
  8. 8.36 × 15 =
  9. 9.47 × 15 =
  10. 10.47 × 15 =
  11. 11.35 × 15 =
  12. 12.27 × 15 =
  13. 13.37 × 15 =
  14. 14.27 × 15 =
  15. 15.5 × 15 =
  16. 16.23 × 15 =
  17. 17.61 × 15 =
  18. 18.14 × 15 =
  19. 19.45 × 15 =
  20. 20.57 × 15 =
  21. 21.48 × 15 =
  22. 22.12 × 15 =
  23. 23.28 × 15 =
  24. 24.60 × 15 =
  25. 25.34 × 15 =
  26. 26.59 × 15 =
  27. 27.57 × 15 =
  28. 28.41 × 15 =
  29. 29.44 × 15 =
  30. 30.31 × 15 =
  31. 31.8 × 15 =
  32. 32.27 × 15 =
  33. 33.60 × 15 =
  34. 34.57 × 15 =
  35. 35.41 × 15 =
  36. 36.33 × 15 =
  37. 37.4 × 15 =
  38. 38.14 × 15 =
  39. 39.5 × 15 =
  40. 40.41 × 15 =

Answer key

  1. 525
  2. 420
  3. 495
  4. 285
  5. 300
  6. 870
  7. 720
  8. 540
  9. 705
  10. 705
  11. 525
  12. 405
  13. 555
  14. 405
  15. 75
  16. 345
  17. 915
  18. 210
  19. 675
  20. 855
  21. 720
  22. 180
  23. 420
  24. 900
  25. 510
  26. 885
  27. 855
  28. 615
  29. 660
  30. 465
  31. 120
  32. 405
  33. 900
  34. 855
  35. 615
  36. 495
  37. 60
  38. 210
  39. 75
  40. 615

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