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Multiply by 15 Worksheet

Speed calculation lesson 8: × 15: ten plus half · Set 993 · 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. 1.10 × 15 =
  2. 2.51 × 15 =
  3. 3.20 × 15 =
  4. 4.58 × 15 =
  5. 5.63 × 15 =
  6. 6.37 × 15 =
  7. 7.4 × 15 =
  8. 8.34 × 15 =
  9. 9.27 × 15 =
  10. 10.53 × 15 =
  11. 11.19 × 15 =
  12. 12.14 × 15 =
  13. 13.30 × 15 =
  14. 14.49 × 15 =
  15. 15.64 × 15 =
  16. 16.55 × 15 =
  17. 17.59 × 15 =
  18. 18.36 × 15 =
  19. 19.27 × 15 =
  20. 20.25 × 15 =
  21. 21.18 × 15 =
  22. 22.52 × 15 =
  23. 23.24 × 15 =
  24. 24.19 × 15 =
  25. 25.28 × 15 =
  26. 26.20 × 15 =
  27. 27.27 × 15 =
  28. 28.14 × 15 =
  29. 29.11 × 15 =
  30. 30.25 × 15 =
  31. 31.42 × 15 =
  32. 32.15 × 15 =
  33. 33.18 × 15 =
  34. 34.14 × 15 =
  35. 35.62 × 15 =
  36. 36.60 × 15 =
  37. 37.26 × 15 =
  38. 38.4 × 15 =
  39. 39.18 × 15 =
  40. 40.33 × 15 =

Answer key

  1. 150
  2. 765
  3. 300
  4. 870
  5. 945
  6. 555
  7. 60
  8. 510
  9. 405
  10. 795
  11. 285
  12. 210
  13. 450
  14. 735
  15. 960
  16. 825
  17. 885
  18. 540
  19. 405
  20. 375
  21. 270
  22. 780
  23. 360
  24. 285
  25. 420
  26. 300
  27. 405
  28. 210
  29. 165
  30. 375
  31. 630
  32. 225
  33. 270
  34. 210
  35. 930
  36. 900
  37. 390
  38. 60
  39. 270
  40. 495

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