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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 714 · 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. 1.77 × 5 =
  2. 2.34 × 5 =
  3. 3.12 × 50 =
  4. 4.59 × 5 =
  5. 5.23 × 5 =
  6. 6.42 × 5 =
  7. 7.33 × 5 =
  8. 8.65 × 50 =
  9. 9.65 × 5 =
  10. 10.49 × 50 =
  11. 11.93 × 5 =
  12. 12.61 × 50 =
  13. 13.13 × 50 =
  14. 14.72 × 50 =
  15. 15.13 × 5 =
  16. 16.19 × 50 =
  17. 17.79 × 50 =
  18. 18.32 × 50 =
  19. 19.52 × 5 =
  20. 20.69 × 5 =
  21. 21.73 × 50 =
  22. 22.76 × 50 =
  23. 23.60 × 50 =
  24. 24.44 × 50 =
  25. 25.28 × 5 =
  26. 26.20 × 50 =
  27. 27.33 × 50 =
  28. 28.65 × 5 =
  29. 29.44 × 5 =
  30. 30.48 × 5 =
  31. 31.79 × 50 =
  32. 32.29 × 5 =
  33. 33.13 × 5 =
  34. 34.28 × 5 =
  35. 35.53 × 50 =
  36. 36.51 × 5 =
  37. 37.74 × 50 =
  38. 38.56 × 5 =
  39. 39.18 × 50 =
  40. 40.61 × 5 =

Answer key

  1. 385
  2. 170
  3. 600
  4. 295
  5. 115
  6. 210
  7. 165
  8. 3250
  9. 325
  10. 2450
  11. 465
  12. 3050
  13. 650
  14. 3600
  15. 65
  16. 950
  17. 3950
  18. 1600
  19. 260
  20. 345
  21. 3650
  22. 3800
  23. 3000
  24. 2200
  25. 140
  26. 1000
  27. 1650
  28. 325
  29. 220
  30. 240
  31. 3950
  32. 145
  33. 65
  34. 140
  35. 2650
  36. 255
  37. 3700
  38. 280
  39. 900
  40. 305

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