← × 15: ten plus half lesson New set →

Multiply by 15 Worksheet

Speed calculation lesson 8: × 15: ten plus half · Set 805 · 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. 1.39 × 15 =
  2. 2.32 × 15 =
  3. 3.57 × 15 =
  4. 4.54 × 15 =
  5. 5.23 × 15 =
  6. 6.63 × 15 =
  7. 7.60 × 15 =
  8. 8.57 × 15 =
  9. 9.5 × 15 =
  10. 10.14 × 15 =
  11. 11.42 × 15 =
  12. 12.27 × 15 =
  13. 13.43 × 15 =
  14. 14.41 × 15 =
  15. 15.56 × 15 =
  16. 16.7 × 15 =
  17. 17.59 × 15 =
  18. 18.45 × 15 =
  19. 19.12 × 15 =
  20. 20.5 × 15 =
  21. 21.6 × 15 =
  22. 22.25 × 15 =
  23. 23.33 × 15 =
  24. 24.41 × 15 =
  25. 25.46 × 15 =
  26. 26.56 × 15 =
  27. 27.44 × 15 =
  28. 28.60 × 15 =
  29. 29.16 × 15 =
  30. 30.35 × 15 =
  31. 31.6 × 15 =
  32. 32.53 × 15 =
  33. 33.56 × 15 =
  34. 34.19 × 15 =
  35. 35.8 × 15 =
  36. 36.50 × 15 =
  37. 37.35 × 15 =
  38. 38.11 × 15 =
  39. 39.25 × 15 =
  40. 40.27 × 15 =

Answer key

  1. 585
  2. 480
  3. 855
  4. 810
  5. 345
  6. 945
  7. 900
  8. 855
  9. 75
  10. 210
  11. 630
  12. 405
  13. 645
  14. 615
  15. 840
  16. 105
  17. 885
  18. 675
  19. 180
  20. 75
  21. 90
  22. 375
  23. 495
  24. 615
  25. 690
  26. 840
  27. 660
  28. 900
  29. 240
  30. 525
  31. 90
  32. 795
  33. 840
  34. 285
  35. 120
  36. 750
  37. 525
  38. 165
  39. 375
  40. 405

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