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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 680 · 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. 1.56 × 50 =
  2. 2.64 × 50 =
  3. 3.91 × 50 =
  4. 4.17 × 5 =
  5. 5.62 × 5 =
  6. 6.31 × 50 =
  7. 7.48 × 50 =
  8. 8.21 × 5 =
  9. 9.87 × 50 =
  10. 10.31 × 50 =
  11. 11.90 × 50 =
  12. 12.47 × 50 =
  13. 13.45 × 50 =
  14. 14.50 × 5 =
  15. 15.20 × 5 =
  16. 16.38 × 50 =
  17. 17.41 × 5 =
  18. 18.96 × 50 =
  19. 19.44 × 5 =
  20. 20.22 × 5 =
  21. 21.75 × 50 =
  22. 22.81 × 5 =
  23. 23.19 × 5 =
  24. 24.76 × 5 =
  25. 25.49 × 5 =
  26. 26.47 × 50 =
  27. 27.85 × 5 =
  28. 28.18 × 50 =
  29. 29.14 × 5 =
  30. 30.67 × 5 =
  31. 31.63 × 5 =
  32. 32.24 × 5 =
  33. 33.24 × 5 =
  34. 34.18 × 50 =
  35. 35.72 × 5 =
  36. 36.67 × 5 =
  37. 37.94 × 50 =
  38. 38.57 × 5 =
  39. 39.44 × 50 =
  40. 40.61 × 50 =

Answer key

  1. 2800
  2. 3200
  3. 4550
  4. 85
  5. 310
  6. 1550
  7. 2400
  8. 105
  9. 4350
  10. 1550
  11. 4500
  12. 2350
  13. 2250
  14. 250
  15. 100
  16. 1900
  17. 205
  18. 4800
  19. 220
  20. 110
  21. 3750
  22. 405
  23. 95
  24. 380
  25. 245
  26. 2350
  27. 425
  28. 900
  29. 70
  30. 335
  31. 315
  32. 120
  33. 120
  34. 900
  35. 360
  36. 335
  37. 4700
  38. 285
  39. 2200
  40. 3050

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