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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 249 · 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. 1.63 × 5 =
  2. 2.58 × 5 =
  3. 3.91 × 5 =
  4. 4.42 × 50 =
  5. 5.19 × 50 =
  6. 6.82 × 50 =
  7. 7.14 × 50 =
  8. 8.73 × 50 =
  9. 9.26 × 5 =
  10. 10.16 × 5 =
  11. 11.40 × 50 =
  12. 12.60 × 5 =
  13. 13.55 × 5 =
  14. 14.90 × 50 =
  15. 15.79 × 50 =
  16. 16.13 × 50 =
  17. 17.19 × 5 =
  18. 18.45 × 5 =
  19. 19.47 × 50 =
  20. 20.21 × 5 =
  21. 21.58 × 5 =
  22. 22.44 × 5 =
  23. 23.62 × 50 =
  24. 24.96 × 50 =
  25. 25.49 × 5 =
  26. 26.83 × 50 =
  27. 27.44 × 50 =
  28. 28.20 × 50 =
  29. 29.48 × 50 =
  30. 30.17 × 5 =
  31. 31.38 × 50 =
  32. 32.82 × 50 =
  33. 33.77 × 5 =
  34. 34.91 × 50 =
  35. 35.51 × 5 =
  36. 36.50 × 5 =
  37. 37.19 × 50 =
  38. 38.85 × 5 =
  39. 39.87 × 5 =
  40. 40.65 × 50 =

Answer key

  1. 315
  2. 290
  3. 455
  4. 2100
  5. 950
  6. 4100
  7. 700
  8. 3650
  9. 130
  10. 80
  11. 2000
  12. 300
  13. 275
  14. 4500
  15. 3950
  16. 650
  17. 95
  18. 225
  19. 2350
  20. 105
  21. 290
  22. 220
  23. 3100
  24. 4800
  25. 245
  26. 4150
  27. 2200
  28. 1000
  29. 2400
  30. 85
  31. 1900
  32. 4100
  33. 385
  34. 4550
  35. 255
  36. 250
  37. 950
  38. 425
  39. 435
  40. 3250

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