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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 902 · 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. 1.91 × 5 =
  2. 2.89 × 5 =
  3. 3.91 × 5 =
  4. 4.12 × 5 =
  5. 5.22 × 5 =
  6. 6.68 × 5 =
  7. 7.33 × 5 =
  8. 8.12 × 5 =
  9. 9.23 × 5 =
  10. 10.93 × 5 =
  11. 11.92 × 5 =
  12. 12.30 × 5 =
  13. 13.14 × 50 =
  14. 14.47 × 5 =
  15. 15.97 × 50 =
  16. 16.41 × 5 =
  17. 17.24 × 5 =
  18. 18.96 × 5 =
  19. 19.24 × 5 =
  20. 20.51 × 50 =
  21. 21.56 × 50 =
  22. 22.95 × 50 =
  23. 23.37 × 50 =
  24. 24.67 × 5 =
  25. 25.17 × 5 =
  26. 26.86 × 50 =
  27. 27.65 × 50 =
  28. 28.12 × 50 =
  29. 29.23 × 50 =
  30. 30.82 × 5 =
  31. 31.70 × 50 =
  32. 32.51 × 50 =
  33. 33.51 × 5 =
  34. 34.44 × 50 =
  35. 35.35 × 5 =
  36. 36.23 × 5 =
  37. 37.31 × 50 =
  38. 38.18 × 50 =
  39. 39.19 × 5 =
  40. 40.77 × 50 =

Answer key

  1. 455
  2. 445
  3. 455
  4. 60
  5. 110
  6. 340
  7. 165
  8. 60
  9. 115
  10. 465
  11. 460
  12. 150
  13. 700
  14. 235
  15. 4850
  16. 205
  17. 120
  18. 480
  19. 120
  20. 2550
  21. 2800
  22. 4750
  23. 1850
  24. 335
  25. 85
  26. 4300
  27. 3250
  28. 600
  29. 1150
  30. 410
  31. 3500
  32. 2550
  33. 255
  34. 2200
  35. 175
  36. 115
  37. 1550
  38. 900
  39. 95
  40. 3850

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