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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 126 · 40 questions
TalentJR

The fast method (Halve first): Halve the number. × 5: multiply the half by 10. × 50: multiply the half by 100. Odd number? Its half ends in .5 — 43 → 21.5 — and × 10 moves the point: 215.

NameDateTime takenScore ___ / 40
  1. 1.71 × 50 =
  2. 2.39 × 5 =
  3. 3.39 × 50 =
  4. 4.15 × 5 =
  5. 5.30 × 5 =
  6. 6.67 × 5 =
  7. 7.12 × 50 =
  8. 8.97 × 50 =
  9. 9.51 × 5 =
  10. 10.90 × 50 =
  11. 11.53 × 5 =
  12. 12.69 × 50 =
  13. 13.45 × 5 =
  14. 14.25 × 50 =
  15. 15.44 × 5 =
  16. 16.82 × 50 =
  17. 17.28 × 50 =
  18. 18.19 × 50 =
  19. 19.40 × 50 =
  20. 20.92 × 50 =
  21. 21.40 × 50 =
  22. 22.89 × 50 =
  23. 23.32 × 5 =
  24. 24.30 × 5 =
  25. 25.52 × 5 =
  26. 26.62 × 5 =
  27. 27.46 × 50 =
  28. 28.46 × 50 =
  29. 29.34 × 50 =
  30. 30.47 × 50 =
  31. 31.83 × 5 =
  32. 32.60 × 50 =
  33. 33.30 × 5 =
  34. 34.54 × 5 =
  35. 35.24 × 50 =
  36. 36.13 × 5 =
  37. 37.30 × 5 =
  38. 38.31 × 50 =
  39. 39.53 × 50 =
  40. 40.97 × 50 =

Answer key

  1. 3550
  2. 195
  3. 1950
  4. 75
  5. 150
  6. 335
  7. 600
  8. 4850
  9. 255
  10. 4500
  11. 265
  12. 3450
  13. 225
  14. 1250
  15. 220
  16. 4100
  17. 1400
  18. 950
  19. 2000
  20. 4600
  21. 2000
  22. 4450
  23. 160
  24. 150
  25. 260
  26. 310
  27. 2300
  28. 2300
  29. 1700
  30. 2350
  31. 415
  32. 3000
  33. 150
  34. 270
  35. 1200
  36. 65
  37. 150
  38. 1550
  39. 2650
  40. 4850

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