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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 970 · 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. 1.69 × 50 =
  2. 2.20 × 50 =
  3. 3.32 × 5 =
  4. 4.79 × 5 =
  5. 5.96 × 50 =
  6. 6.12 × 5 =
  7. 7.86 × 50 =
  8. 8.16 × 5 =
  9. 9.15 × 5 =
  10. 10.18 × 5 =
  11. 11.53 × 5 =
  12. 12.30 × 50 =
  13. 13.73 × 5 =
  14. 14.47 × 50 =
  15. 15.75 × 50 =
  16. 16.58 × 5 =
  17. 17.95 × 5 =
  18. 18.74 × 50 =
  19. 19.24 × 5 =
  20. 20.98 × 50 =
  21. 21.53 × 5 =
  22. 22.76 × 5 =
  23. 23.36 × 50 =
  24. 24.51 × 5 =
  25. 25.24 × 50 =
  26. 26.56 × 50 =
  27. 27.16 × 50 =
  28. 28.95 × 50 =
  29. 29.18 × 5 =
  30. 30.22 × 50 =
  31. 31.76 × 50 =
  32. 32.43 × 50 =
  33. 33.86 × 50 =
  34. 34.18 × 5 =
  35. 35.86 × 50 =
  36. 36.53 × 5 =
  37. 37.14 × 50 =
  38. 38.47 × 50 =
  39. 39.82 × 5 =
  40. 40.29 × 50 =

Answer key

  1. 3450
  2. 1000
  3. 160
  4. 395
  5. 4800
  6. 60
  7. 4300
  8. 80
  9. 75
  10. 90
  11. 265
  12. 1500
  13. 365
  14. 2350
  15. 3750
  16. 290
  17. 475
  18. 3700
  19. 120
  20. 4900
  21. 265
  22. 380
  23. 1800
  24. 255
  25. 1200
  26. 2800
  27. 800
  28. 4750
  29. 90
  30. 1100
  31. 3800
  32. 2150
  33. 4300
  34. 90
  35. 4300
  36. 265
  37. 700
  38. 2350
  39. 410
  40. 1450

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