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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 943 · 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. 1.94 × 5 =
  2. 2.16 × 50 =
  3. 3.46 × 50 =
  4. 4.83 × 50 =
  5. 5.28 × 5 =
  6. 6.73 × 5 =
  7. 7.45 × 5 =
  8. 8.80 × 50 =
  9. 9.92 × 5 =
  10. 10.95 × 50 =
  11. 11.72 × 50 =
  12. 12.59 × 5 =
  13. 13.63 × 5 =
  14. 14.48 × 50 =
  15. 15.36 × 5 =
  16. 16.34 × 50 =
  17. 17.12 × 50 =
  18. 18.15 × 50 =
  19. 19.49 × 50 =
  20. 20.96 × 50 =
  21. 21.22 × 50 =
  22. 22.34 × 5 =
  23. 23.27 × 5 =
  24. 24.73 × 5 =
  25. 25.60 × 50 =
  26. 26.38 × 5 =
  27. 27.88 × 5 =
  28. 28.18 × 5 =
  29. 29.27 × 50 =
  30. 30.13 × 50 =
  31. 31.80 × 50 =
  32. 32.15 × 5 =
  33. 33.17 × 5 =
  34. 34.74 × 5 =
  35. 35.42 × 50 =
  36. 36.30 × 50 =
  37. 37.50 × 50 =
  38. 38.48 × 5 =
  39. 39.45 × 5 =
  40. 40.92 × 50 =

Answer key

  1. 470
  2. 800
  3. 2300
  4. 4150
  5. 140
  6. 365
  7. 225
  8. 4000
  9. 460
  10. 4750
  11. 3600
  12. 295
  13. 315
  14. 2400
  15. 180
  16. 1700
  17. 600
  18. 750
  19. 2450
  20. 4800
  21. 1100
  22. 170
  23. 135
  24. 365
  25. 3000
  26. 190
  27. 440
  28. 90
  29. 1350
  30. 650
  31. 4000
  32. 75
  33. 85
  34. 370
  35. 2100
  36. 1500
  37. 2500
  38. 240
  39. 225
  40. 4600

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