← × 15: ten plus half lesson New set →

Multiply by 15 Worksheet

Speed calculation lesson 8: × 15: ten plus half · Set 759 · 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. 1.26 × 15 =
  2. 2.28 × 15 =
  3. 3.6 × 15 =
  4. 4.14 × 15 =
  5. 5.5 × 15 =
  6. 6.21 × 15 =
  7. 7.8 × 15 =
  8. 8.49 × 15 =
  9. 9.23 × 15 =
  10. 10.46 × 15 =
  11. 11.26 × 15 =
  12. 12.42 × 15 =
  13. 13.47 × 15 =
  14. 14.64 × 15 =
  15. 15.57 × 15 =
  16. 16.49 × 15 =
  17. 17.43 × 15 =
  18. 18.64 × 15 =
  19. 19.42 × 15 =
  20. 20.42 × 15 =
  21. 21.56 × 15 =
  22. 22.36 × 15 =
  23. 23.54 × 15 =
  24. 24.6 × 15 =
  25. 25.14 × 15 =
  26. 26.17 × 15 =
  27. 27.6 × 15 =
  28. 28.12 × 15 =
  29. 29.64 × 15 =
  30. 30.36 × 15 =
  31. 31.46 × 15 =
  32. 32.59 × 15 =
  33. 33.51 × 15 =
  34. 34.61 × 15 =
  35. 35.20 × 15 =
  36. 36.11 × 15 =
  37. 37.40 × 15 =
  38. 38.14 × 15 =
  39. 39.24 × 15 =
  40. 40.54 × 15 =

Answer key

  1. 390
  2. 420
  3. 90
  4. 210
  5. 75
  6. 315
  7. 120
  8. 735
  9. 345
  10. 690
  11. 390
  12. 630
  13. 705
  14. 960
  15. 855
  16. 735
  17. 645
  18. 960
  19. 630
  20. 630
  21. 840
  22. 540
  23. 810
  24. 90
  25. 210
  26. 255
  27. 90
  28. 180
  29. 960
  30. 540
  31. 690
  32. 885
  33. 765
  34. 915
  35. 300
  36. 165
  37. 600
  38. 210
  39. 360
  40. 810

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