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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 48 · 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. 1.24 × 50 =
  2. 2.34 × 5 =
  3. 3.32 × 50 =
  4. 4.14 × 5 =
  5. 5.46 × 5 =
  6. 6.40 × 50 =
  7. 7.62 × 50 =
  8. 8.92 × 5 =
  9. 9.96 × 5 =
  10. 10.62 × 50 =
  11. 11.54 × 5 =
  12. 12.80 × 50 =
  13. 13.34 × 5 =
  14. 14.33 × 50 =
  15. 15.93 × 5 =
  16. 16.15 × 5 =
  17. 17.98 × 50 =
  18. 18.18 × 5 =
  19. 19.95 × 50 =
  20. 20.61 × 5 =
  21. 21.30 × 5 =
  22. 22.38 × 5 =
  23. 23.67 × 5 =
  24. 24.80 × 50 =
  25. 25.63 × 5 =
  26. 26.96 × 5 =
  27. 27.35 × 5 =
  28. 28.19 × 5 =
  29. 29.75 × 5 =
  30. 30.61 × 50 =
  31. 31.31 × 5 =
  32. 32.36 × 50 =
  33. 33.73 × 5 =
  34. 34.47 × 50 =
  35. 35.62 × 50 =
  36. 36.82 × 50 =
  37. 37.64 × 50 =
  38. 38.65 × 50 =
  39. 39.35 × 5 =
  40. 40.38 × 50 =

Answer key

  1. 1200
  2. 170
  3. 1600
  4. 70
  5. 230
  6. 2000
  7. 3100
  8. 460
  9. 480
  10. 3100
  11. 270
  12. 4000
  13. 170
  14. 1650
  15. 465
  16. 75
  17. 4900
  18. 90
  19. 4750
  20. 305
  21. 150
  22. 190
  23. 335
  24. 4000
  25. 315
  26. 480
  27. 175
  28. 95
  29. 375
  30. 3050
  31. 155
  32. 1800
  33. 365
  34. 2350
  35. 3100
  36. 4100
  37. 3200
  38. 3250
  39. 175
  40. 1900

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