← × 15: ten plus half lesson New set →

Multiply by 15 Worksheet

Speed calculation lesson 8: × 15: ten plus half · Set 764 · 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. 1.41 × 15 =
  2. 2.45 × 15 =
  3. 3.52 × 15 =
  4. 4.16 × 15 =
  5. 5.52 × 15 =
  6. 6.11 × 15 =
  7. 7.51 × 15 =
  8. 8.33 × 15 =
  9. 9.40 × 15 =
  10. 10.12 × 15 =
  11. 11.4 × 15 =
  12. 12.45 × 15 =
  13. 13.41 × 15 =
  14. 14.36 × 15 =
  15. 15.53 × 15 =
  16. 16.35 × 15 =
  17. 17.38 × 15 =
  18. 18.26 × 15 =
  19. 19.54 × 15 =
  20. 20.8 × 15 =
  21. 21.5 × 15 =
  22. 22.44 × 15 =
  23. 23.30 × 15 =
  24. 24.57 × 15 =
  25. 25.19 × 15 =
  26. 26.62 × 15 =
  27. 27.7 × 15 =
  28. 28.25 × 15 =
  29. 29.20 × 15 =
  30. 30.7 × 15 =
  31. 31.34 × 15 =
  32. 32.36 × 15 =
  33. 33.18 × 15 =
  34. 34.42 × 15 =
  35. 35.55 × 15 =
  36. 36.32 × 15 =
  37. 37.8 × 15 =
  38. 38.62 × 15 =
  39. 39.24 × 15 =
  40. 40.8 × 15 =

Answer key

  1. 615
  2. 675
  3. 780
  4. 240
  5. 780
  6. 165
  7. 765
  8. 495
  9. 600
  10. 180
  11. 60
  12. 675
  13. 615
  14. 540
  15. 795
  16. 525
  17. 570
  18. 390
  19. 810
  20. 120
  21. 75
  22. 660
  23. 450
  24. 855
  25. 285
  26. 930
  27. 105
  28. 375
  29. 300
  30. 105
  31. 510
  32. 540
  33. 270
  34. 630
  35. 825
  36. 480
  37. 120
  38. 930
  39. 360
  40. 120

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