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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 928 · 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. 1.35 × 5 =
  2. 2.56 × 50 =
  3. 3.62 × 5 =
  4. 4.41 × 5 =
  5. 5.25 × 50 =
  6. 6.84 × 5 =
  7. 7.78 × 5 =
  8. 8.50 × 50 =
  9. 9.26 × 5 =
  10. 10.93 × 50 =
  11. 11.82 × 5 =
  12. 12.23 × 5 =
  13. 13.27 × 50 =
  14. 14.17 × 50 =
  15. 15.87 × 50 =
  16. 16.19 × 5 =
  17. 17.42 × 5 =
  18. 18.55 × 5 =
  19. 19.47 × 50 =
  20. 20.16 × 50 =
  21. 21.65 × 50 =
  22. 22.35 × 50 =
  23. 23.81 × 50 =
  24. 24.93 × 5 =
  25. 25.33 × 50 =
  26. 26.85 × 5 =
  27. 27.93 × 50 =
  28. 28.34 × 5 =
  29. 29.73 × 50 =
  30. 30.41 × 5 =
  31. 31.85 × 5 =
  32. 32.97 × 50 =
  33. 33.83 × 50 =
  34. 34.86 × 5 =
  35. 35.58 × 50 =
  36. 36.15 × 5 =
  37. 37.91 × 50 =
  38. 38.80 × 50 =
  39. 39.15 × 50 =
  40. 40.69 × 5 =

Answer key

  1. 175
  2. 2800
  3. 310
  4. 205
  5. 1250
  6. 420
  7. 390
  8. 2500
  9. 130
  10. 4650
  11. 410
  12. 115
  13. 1350
  14. 850
  15. 4350
  16. 95
  17. 210
  18. 275
  19. 2350
  20. 800
  21. 3250
  22. 1750
  23. 4050
  24. 465
  25. 1650
  26. 425
  27. 4650
  28. 170
  29. 3650
  30. 205
  31. 425
  32. 4850
  33. 4150
  34. 430
  35. 2900
  36. 75
  37. 4550
  38. 4000
  39. 750
  40. 345

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