← × 15: ten plus half lesson New set →

Multiply by 15 Worksheet

Speed calculation lesson 8: × 15: ten plus half · Set 350 · 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. 1.58 × 15 =
  2. 2.5 × 15 =
  3. 3.7 × 15 =
  4. 4.19 × 15 =
  5. 5.11 × 15 =
  6. 6.37 × 15 =
  7. 7.51 × 15 =
  8. 8.46 × 15 =
  9. 9.30 × 15 =
  10. 10.9 × 15 =
  11. 11.11 × 15 =
  12. 12.4 × 15 =
  13. 13.9 × 15 =
  14. 14.16 × 15 =
  15. 15.15 × 15 =
  16. 16.11 × 15 =
  17. 17.21 × 15 =
  18. 18.17 × 15 =
  19. 19.53 × 15 =
  20. 20.6 × 15 =
  21. 21.30 × 15 =
  22. 22.7 × 15 =
  23. 23.19 × 15 =
  24. 24.63 × 15 =
  25. 25.17 × 15 =
  26. 26.54 × 15 =
  27. 27.10 × 15 =
  28. 28.11 × 15 =
  29. 29.30 × 15 =
  30. 30.19 × 15 =
  31. 31.22 × 15 =
  32. 32.49 × 15 =
  33. 33.26 × 15 =
  34. 34.51 × 15 =
  35. 35.30 × 15 =
  36. 36.24 × 15 =
  37. 37.25 × 15 =
  38. 38.22 × 15 =
  39. 39.5 × 15 =
  40. 40.26 × 15 =

Answer key

  1. 870
  2. 75
  3. 105
  4. 285
  5. 165
  6. 555
  7. 765
  8. 690
  9. 450
  10. 135
  11. 165
  12. 60
  13. 135
  14. 240
  15. 225
  16. 165
  17. 315
  18. 255
  19. 795
  20. 90
  21. 450
  22. 105
  23. 285
  24. 945
  25. 255
  26. 810
  27. 150
  28. 165
  29. 450
  30. 285
  31. 330
  32. 735
  33. 390
  34. 765
  35. 450
  36. 360
  37. 375
  38. 330
  39. 75
  40. 390

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