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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 849 · 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. 1.19 × 5 =
  2. 2.58 × 5 =
  3. 3.13 × 5 =
  4. 4.44 × 5 =
  5. 5.55 × 50 =
  6. 6.66 × 5 =
  7. 7.31 × 50 =
  8. 8.37 × 50 =
  9. 9.40 × 5 =
  10. 10.47 × 5 =
  11. 11.82 × 5 =
  12. 12.17 × 50 =
  13. 13.31 × 5 =
  14. 14.26 × 50 =
  15. 15.40 × 5 =
  16. 16.23 × 5 =
  17. 17.91 × 5 =
  18. 18.70 × 5 =
  19. 19.47 × 50 =
  20. 20.68 × 5 =
  21. 21.35 × 5 =
  22. 22.30 × 5 =
  23. 23.93 × 5 =
  24. 24.66 × 5 =
  25. 25.39 × 5 =
  26. 26.80 × 50 =
  27. 27.46 × 5 =
  28. 28.49 × 50 =
  29. 29.74 × 50 =
  30. 30.46 × 5 =
  31. 31.38 × 50 =
  32. 32.43 × 5 =
  33. 33.21 × 5 =
  34. 34.74 × 5 =
  35. 35.82 × 50 =
  36. 36.25 × 50 =
  37. 37.89 × 50 =
  38. 38.13 × 5 =
  39. 39.47 × 5 =
  40. 40.43 × 5 =

Answer key

  1. 95
  2. 290
  3. 65
  4. 220
  5. 2750
  6. 330
  7. 1550
  8. 1850
  9. 200
  10. 235
  11. 410
  12. 850
  13. 155
  14. 1300
  15. 200
  16. 115
  17. 455
  18. 350
  19. 2350
  20. 340
  21. 175
  22. 150
  23. 465
  24. 330
  25. 195
  26. 4000
  27. 230
  28. 2450
  29. 3700
  30. 230
  31. 1900
  32. 215
  33. 105
  34. 370
  35. 4100
  36. 1250
  37. 4450
  38. 65
  39. 235
  40. 215

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