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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 843 · 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. 1.93 × 5 =
  2. 2.83 × 50 =
  3. 3.48 × 5 =
  4. 4.20 × 50 =
  5. 5.88 × 50 =
  6. 6.23 × 5 =
  7. 7.75 × 50 =
  8. 8.30 × 5 =
  9. 9.12 × 50 =
  10. 10.29 × 5 =
  11. 11.51 × 5 =
  12. 12.14 × 50 =
  13. 13.97 × 5 =
  14. 14.92 × 5 =
  15. 15.80 × 5 =
  16. 16.49 × 50 =
  17. 17.84 × 50 =
  18. 18.96 × 5 =
  19. 19.28 × 5 =
  20. 20.90 × 5 =
  21. 21.77 × 5 =
  22. 22.72 × 50 =
  23. 23.28 × 50 =
  24. 24.14 × 50 =
  25. 25.73 × 50 =
  26. 26.71 × 5 =
  27. 27.81 × 50 =
  28. 28.88 × 5 =
  29. 29.93 × 50 =
  30. 30.32 × 5 =
  31. 31.25 × 50 =
  32. 32.34 × 50 =
  33. 33.56 × 50 =
  34. 34.93 × 50 =
  35. 35.25 × 50 =
  36. 36.76 × 50 =
  37. 37.25 × 5 =
  38. 38.15 × 5 =
  39. 39.18 × 50 =
  40. 40.25 × 50 =

Answer key

  1. 465
  2. 4150
  3. 240
  4. 1000
  5. 4400
  6. 115
  7. 3750
  8. 150
  9. 600
  10. 145
  11. 255
  12. 700
  13. 485
  14. 460
  15. 400
  16. 2450
  17. 4200
  18. 480
  19. 140
  20. 450
  21. 385
  22. 3600
  23. 1400
  24. 700
  25. 3650
  26. 355
  27. 4050
  28. 440
  29. 4650
  30. 160
  31. 1250
  32. 1700
  33. 2800
  34. 4650
  35. 1250
  36. 3800
  37. 125
  38. 75
  39. 900
  40. 1250

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