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Multiply by 15 Worksheet

Speed calculation lesson 8: × 15: ten plus half · Set 754 · 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. 1.14 × 15 =
  2. 2.64 × 15 =
  3. 3.57 × 15 =
  4. 4.32 × 15 =
  5. 5.36 × 15 =
  6. 6.4 × 15 =
  7. 7.44 × 15 =
  8. 8.21 × 15 =
  9. 9.40 × 15 =
  10. 10.11 × 15 =
  11. 11.19 × 15 =
  12. 12.25 × 15 =
  13. 13.34 × 15 =
  14. 14.11 × 15 =
  15. 15.19 × 15 =
  16. 16.33 × 15 =
  17. 17.16 × 15 =
  18. 18.41 × 15 =
  19. 19.64 × 15 =
  20. 20.22 × 15 =
  21. 21.11 × 15 =
  22. 22.7 × 15 =
  23. 23.29 × 15 =
  24. 24.14 × 15 =
  25. 25.60 × 15 =
  26. 26.22 × 15 =
  27. 27.8 × 15 =
  28. 28.26 × 15 =
  29. 29.11 × 15 =
  30. 30.55 × 15 =
  31. 31.35 × 15 =
  32. 32.17 × 15 =
  33. 33.47 × 15 =
  34. 34.18 × 15 =
  35. 35.13 × 15 =
  36. 36.56 × 15 =
  37. 37.20 × 15 =
  38. 38.12 × 15 =
  39. 39.58 × 15 =
  40. 40.41 × 15 =

Answer key

  1. 210
  2. 960
  3. 855
  4. 480
  5. 540
  6. 60
  7. 660
  8. 315
  9. 600
  10. 165
  11. 285
  12. 375
  13. 510
  14. 165
  15. 285
  16. 495
  17. 240
  18. 615
  19. 960
  20. 330
  21. 165
  22. 105
  23. 435
  24. 210
  25. 900
  26. 330
  27. 120
  28. 390
  29. 165
  30. 825
  31. 525
  32. 255
  33. 705
  34. 270
  35. 195
  36. 840
  37. 300
  38. 180
  39. 870
  40. 615

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