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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 624 · 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. 1.26 × 50 =
  2. 2.39 × 5 =
  3. 3.17 × 50 =
  4. 4.68 × 5 =
  5. 5.85 × 5 =
  6. 6.16 × 5 =
  7. 7.92 × 5 =
  8. 8.56 × 5 =
  9. 9.69 × 50 =
  10. 10.36 × 5 =
  11. 11.76 × 50 =
  12. 12.16 × 50 =
  13. 13.88 × 5 =
  14. 14.38 × 50 =
  15. 15.51 × 50 =
  16. 16.85 × 50 =
  17. 17.34 × 50 =
  18. 18.32 × 5 =
  19. 19.51 × 50 =
  20. 20.78 × 5 =
  21. 21.29 × 50 =
  22. 22.60 × 50 =
  23. 23.80 × 5 =
  24. 24.52 × 5 =
  25. 25.21 × 5 =
  26. 26.54 × 50 =
  27. 27.47 × 5 =
  28. 28.29 × 50 =
  29. 29.70 × 5 =
  30. 30.59 × 50 =
  31. 31.46 × 5 =
  32. 32.58 × 5 =
  33. 33.94 × 5 =
  34. 34.61 × 5 =
  35. 35.77 × 5 =
  36. 36.33 × 50 =
  37. 37.36 × 5 =
  38. 38.55 × 5 =
  39. 39.25 × 5 =
  40. 40.75 × 5 =

Answer key

  1. 1300
  2. 195
  3. 850
  4. 340
  5. 425
  6. 80
  7. 460
  8. 280
  9. 3450
  10. 180
  11. 3800
  12. 800
  13. 440
  14. 1900
  15. 2550
  16. 4250
  17. 1700
  18. 160
  19. 2550
  20. 390
  21. 1450
  22. 3000
  23. 400
  24. 260
  25. 105
  26. 2700
  27. 235
  28. 1450
  29. 350
  30. 2950
  31. 230
  32. 290
  33. 470
  34. 305
  35. 385
  36. 1650
  37. 180
  38. 275
  39. 125
  40. 375

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