← × 15: ten plus half lesson New set →

Multiply by 15 Worksheet

Speed calculation lesson 8: × 15: ten plus half · Set 116 · 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. 1.21 × 15 =
  2. 2.14 × 15 =
  3. 3.39 × 15 =
  4. 4.35 × 15 =
  5. 5.31 × 15 =
  6. 6.38 × 15 =
  7. 7.5 × 15 =
  8. 8.6 × 15 =
  9. 9.26 × 15 =
  10. 10.39 × 15 =
  11. 11.24 × 15 =
  12. 12.8 × 15 =
  13. 13.54 × 15 =
  14. 14.55 × 15 =
  15. 15.33 × 15 =
  16. 16.63 × 15 =
  17. 17.10 × 15 =
  18. 18.64 × 15 =
  19. 19.46 × 15 =
  20. 20.31 × 15 =
  21. 21.21 × 15 =
  22. 22.14 × 15 =
  23. 23.18 × 15 =
  24. 24.5 × 15 =
  25. 25.58 × 15 =
  26. 26.4 × 15 =
  27. 27.20 × 15 =
  28. 28.60 × 15 =
  29. 29.43 × 15 =
  30. 30.33 × 15 =
  31. 31.53 × 15 =
  32. 32.14 × 15 =
  33. 33.20 × 15 =
  34. 34.43 × 15 =
  35. 35.58 × 15 =
  36. 36.55 × 15 =
  37. 37.12 × 15 =
  38. 38.60 × 15 =
  39. 39.10 × 15 =
  40. 40.6 × 15 =

Answer key

  1. 315
  2. 210
  3. 585
  4. 525
  5. 465
  6. 570
  7. 75
  8. 90
  9. 390
  10. 585
  11. 360
  12. 120
  13. 810
  14. 825
  15. 495
  16. 945
  17. 150
  18. 960
  19. 690
  20. 465
  21. 315
  22. 210
  23. 270
  24. 75
  25. 870
  26. 60
  27. 300
  28. 900
  29. 645
  30. 495
  31. 795
  32. 210
  33. 300
  34. 645
  35. 870
  36. 825
  37. 180
  38. 900
  39. 150
  40. 90

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