← × 5 and × 50: halve first lesson New set →

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 939 · 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. 1.81 × 50 =
  2. 2.56 × 5 =
  3. 3.41 × 5 =
  4. 4.35 × 5 =
  5. 5.74 × 5 =
  6. 6.24 × 5 =
  7. 7.68 × 5 =
  8. 8.20 × 50 =
  9. 9.42 × 5 =
  10. 10.74 × 50 =
  11. 11.33 × 5 =
  12. 12.49 × 5 =
  13. 13.57 × 5 =
  14. 14.82 × 5 =
  15. 15.29 × 5 =
  16. 16.88 × 5 =
  17. 17.53 × 5 =
  18. 18.80 × 50 =
  19. 19.43 × 5 =
  20. 20.13 × 50 =
  21. 21.72 × 5 =
  22. 22.49 × 50 =
  23. 23.13 × 5 =
  24. 24.32 × 50 =
  25. 25.72 × 5 =
  26. 26.13 × 5 =
  27. 27.82 × 5 =
  28. 28.15 × 5 =
  29. 29.29 × 50 =
  30. 30.12 × 50 =
  31. 31.96 × 50 =
  32. 32.28 × 50 =
  33. 33.79 × 50 =
  34. 34.22 × 50 =
  35. 35.77 × 50 =
  36. 36.18 × 50 =
  37. 37.23 × 50 =
  38. 38.90 × 50 =
  39. 39.70 × 5 =
  40. 40.15 × 50 =

Answer key

  1. 4050
  2. 280
  3. 205
  4. 175
  5. 370
  6. 120
  7. 340
  8. 1000
  9. 210
  10. 3700
  11. 165
  12. 245
  13. 285
  14. 410
  15. 145
  16. 440
  17. 265
  18. 4000
  19. 215
  20. 650
  21. 360
  22. 2450
  23. 65
  24. 1600
  25. 360
  26. 65
  27. 410
  28. 75
  29. 1450
  30. 600
  31. 4800
  32. 1400
  33. 3950
  34. 1100
  35. 3850
  36. 900
  37. 1150
  38. 4500
  39. 350
  40. 750

Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths