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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 43 · 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. 1.40 × 5 =
  2. 2.16 × 50 =
  3. 3.62 × 5 =
  4. 4.54 × 5 =
  5. 5.23 × 50 =
  6. 6.14 × 50 =
  7. 7.81 × 50 =
  8. 8.33 × 5 =
  9. 9.95 × 5 =
  10. 10.14 × 50 =
  11. 11.90 × 5 =
  12. 12.34 × 50 =
  13. 13.79 × 5 =
  14. 14.39 × 50 =
  15. 15.97 × 50 =
  16. 16.80 × 50 =
  17. 17.13 × 50 =
  18. 18.44 × 50 =
  19. 19.13 × 5 =
  20. 20.90 × 5 =
  21. 21.71 × 5 =
  22. 22.54 × 5 =
  23. 23.27 × 50 =
  24. 24.88 × 5 =
  25. 25.26 × 50 =
  26. 26.88 × 50 =
  27. 27.71 × 50 =
  28. 28.19 × 50 =
  29. 29.13 × 5 =
  30. 30.33 × 50 =
  31. 31.78 × 50 =
  32. 32.60 × 5 =
  33. 33.25 × 5 =
  34. 34.22 × 5 =
  35. 35.21 × 5 =
  36. 36.12 × 50 =
  37. 37.58 × 5 =
  38. 38.23 × 50 =
  39. 39.98 × 5 =
  40. 40.27 × 5 =

Answer key

  1. 200
  2. 800
  3. 310
  4. 270
  5. 1150
  6. 700
  7. 4050
  8. 165
  9. 475
  10. 700
  11. 450
  12. 1700
  13. 395
  14. 1950
  15. 4850
  16. 4000
  17. 650
  18. 2200
  19. 65
  20. 450
  21. 355
  22. 270
  23. 1350
  24. 440
  25. 1300
  26. 4400
  27. 3550
  28. 950
  29. 65
  30. 1650
  31. 3900
  32. 300
  33. 125
  34. 110
  35. 105
  36. 600
  37. 290
  38. 1150
  39. 490
  40. 135

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