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Multiply by 15 Worksheet

Speed calculation lesson 8: × 15: ten plus half · Set 744 · 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. 1.46 × 15 =
  2. 2.36 × 15 =
  3. 3.8 × 15 =
  4. 4.36 × 15 =
  5. 5.12 × 15 =
  6. 6.21 × 15 =
  7. 7.13 × 15 =
  8. 8.37 × 15 =
  9. 9.4 × 15 =
  10. 10.14 × 15 =
  11. 11.60 × 15 =
  12. 12.21 × 15 =
  13. 13.64 × 15 =
  14. 14.21 × 15 =
  15. 15.27 × 15 =
  16. 16.19 × 15 =
  17. 17.53 × 15 =
  18. 18.64 × 15 =
  19. 19.61 × 15 =
  20. 20.47 × 15 =
  21. 21.29 × 15 =
  22. 22.32 × 15 =
  23. 23.34 × 15 =
  24. 24.37 × 15 =
  25. 25.10 × 15 =
  26. 26.35 × 15 =
  27. 27.12 × 15 =
  28. 28.46 × 15 =
  29. 29.17 × 15 =
  30. 30.60 × 15 =
  31. 31.64 × 15 =
  32. 32.21 × 15 =
  33. 33.62 × 15 =
  34. 34.57 × 15 =
  35. 35.50 × 15 =
  36. 36.8 × 15 =
  37. 37.18 × 15 =
  38. 38.6 × 15 =
  39. 39.58 × 15 =
  40. 40.16 × 15 =

Answer key

  1. 690
  2. 540
  3. 120
  4. 540
  5. 180
  6. 315
  7. 195
  8. 555
  9. 60
  10. 210
  11. 900
  12. 315
  13. 960
  14. 315
  15. 405
  16. 285
  17. 795
  18. 960
  19. 915
  20. 705
  21. 435
  22. 480
  23. 510
  24. 555
  25. 150
  26. 525
  27. 180
  28. 690
  29. 255
  30. 900
  31. 960
  32. 315
  33. 930
  34. 855
  35. 750
  36. 120
  37. 270
  38. 90
  39. 870
  40. 240

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