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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 117 · 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. 1.96 × 5 =
  2. 2.20 × 5 =
  3. 3.42 × 5 =
  4. 4.14 × 5 =
  5. 5.25 × 50 =
  6. 6.88 × 50 =
  7. 7.25 × 5 =
  8. 8.18 × 50 =
  9. 9.43 × 5 =
  10. 10.14 × 5 =
  11. 11.78 × 50 =
  12. 12.46 × 5 =
  13. 13.67 × 5 =
  14. 14.15 × 5 =
  15. 15.86 × 50 =
  16. 16.33 × 5 =
  17. 17.38 × 50 =
  18. 18.23 × 50 =
  19. 19.73 × 50 =
  20. 20.50 × 5 =
  21. 21.82 × 5 =
  22. 22.81 × 50 =
  23. 23.54 × 50 =
  24. 24.47 × 50 =
  25. 25.75 × 5 =
  26. 26.47 × 50 =
  27. 27.27 × 5 =
  28. 28.41 × 5 =
  29. 29.64 × 50 =
  30. 30.44 × 5 =
  31. 31.37 × 5 =
  32. 32.30 × 5 =
  33. 33.44 × 50 =
  34. 34.80 × 5 =
  35. 35.49 × 50 =
  36. 36.72 × 5 =
  37. 37.26 × 5 =
  38. 38.36 × 5 =
  39. 39.55 × 5 =
  40. 40.98 × 50 =

Answer key

  1. 480
  2. 100
  3. 210
  4. 70
  5. 1250
  6. 4400
  7. 125
  8. 900
  9. 215
  10. 70
  11. 3900
  12. 230
  13. 335
  14. 75
  15. 4300
  16. 165
  17. 1900
  18. 1150
  19. 3650
  20. 250
  21. 410
  22. 4050
  23. 2700
  24. 2350
  25. 375
  26. 2350
  27. 135
  28. 205
  29. 3200
  30. 220
  31. 185
  32. 150
  33. 2200
  34. 400
  35. 2450
  36. 360
  37. 130
  38. 180
  39. 275
  40. 4900

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