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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 839 · 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. 1.30 × 5 =
  2. 2.86 × 5 =
  3. 3.50 × 50 =
  4. 4.36 × 50 =
  5. 5.25 × 50 =
  6. 6.40 × 5 =
  7. 7.33 × 5 =
  8. 8.93 × 50 =
  9. 9.55 × 50 =
  10. 10.12 × 5 =
  11. 11.96 × 5 =
  12. 12.69 × 50 =
  13. 13.97 × 5 =
  14. 14.40 × 50 =
  15. 15.31 × 5 =
  16. 16.31 × 5 =
  17. 17.95 × 5 =
  18. 18.48 × 50 =
  19. 19.85 × 5 =
  20. 20.45 × 5 =
  21. 21.75 × 50 =
  22. 22.43 × 5 =
  23. 23.23 × 5 =
  24. 24.24 × 5 =
  25. 25.32 × 50 =
  26. 26.98 × 50 =
  27. 27.12 × 5 =
  28. 28.72 × 5 =
  29. 29.48 × 5 =
  30. 30.46 × 50 =
  31. 31.64 × 5 =
  32. 32.94 × 5 =
  33. 33.33 × 50 =
  34. 34.56 × 5 =
  35. 35.95 × 5 =
  36. 36.43 × 5 =
  37. 37.64 × 5 =
  38. 38.98 × 50 =
  39. 39.59 × 5 =
  40. 40.58 × 5 =

Answer key

  1. 150
  2. 430
  3. 2500
  4. 1800
  5. 1250
  6. 200
  7. 165
  8. 4650
  9. 2750
  10. 60
  11. 480
  12. 3450
  13. 485
  14. 2000
  15. 155
  16. 155
  17. 475
  18. 2400
  19. 425
  20. 225
  21. 3750
  22. 215
  23. 115
  24. 120
  25. 1600
  26. 4900
  27. 60
  28. 360
  29. 240
  30. 2300
  31. 320
  32. 470
  33. 1650
  34. 280
  35. 475
  36. 215
  37. 320
  38. 4900
  39. 295
  40. 290

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