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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 566 · 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. 1.22 × 5 =
  2. 2.62 × 5 =
  3. 3.58 × 50 =
  4. 4.94 × 5 =
  5. 5.34 × 50 =
  6. 6.76 × 5 =
  7. 7.47 × 5 =
  8. 8.81 × 50 =
  9. 9.82 × 5 =
  10. 10.28 × 5 =
  11. 11.82 × 50 =
  12. 12.35 × 5 =
  13. 13.52 × 5 =
  14. 14.68 × 5 =
  15. 15.50 × 50 =
  16. 16.25 × 50 =
  17. 17.16 × 5 =
  18. 18.62 × 5 =
  19. 19.70 × 5 =
  20. 20.35 × 5 =
  21. 21.64 × 5 =
  22. 22.48 × 5 =
  23. 23.33 × 50 =
  24. 24.65 × 50 =
  25. 25.42 × 5 =
  26. 26.17 × 5 =
  27. 27.73 × 50 =
  28. 28.16 × 5 =
  29. 29.20 × 5 =
  30. 30.93 × 5 =
  31. 31.89 × 50 =
  32. 32.38 × 5 =
  33. 33.31 × 5 =
  34. 34.53 × 5 =
  35. 35.27 × 50 =
  36. 36.41 × 5 =
  37. 37.46 × 5 =
  38. 38.20 × 50 =
  39. 39.39 × 5 =
  40. 40.32 × 50 =

Answer key

  1. 110
  2. 310
  3. 2900
  4. 470
  5. 1700
  6. 380
  7. 235
  8. 4050
  9. 410
  10. 140
  11. 4100
  12. 175
  13. 260
  14. 340
  15. 2500
  16. 1250
  17. 80
  18. 310
  19. 350
  20. 175
  21. 320
  22. 240
  23. 1650
  24. 3250
  25. 210
  26. 85
  27. 3650
  28. 80
  29. 100
  30. 465
  31. 4450
  32. 190
  33. 155
  34. 265
  35. 1350
  36. 205
  37. 230
  38. 1000
  39. 195
  40. 1600

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