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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 369 · 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. 1.23 × 5 =
  2. 2.79 × 50 =
  3. 3.70 × 5 =
  4. 4.90 × 50 =
  5. 5.24 × 50 =
  6. 6.67 × 50 =
  7. 7.12 × 50 =
  8. 8.48 × 50 =
  9. 9.50 × 50 =
  10. 10.69 × 50 =
  11. 11.86 × 5 =
  12. 12.56 × 5 =
  13. 13.16 × 50 =
  14. 14.88 × 50 =
  15. 15.84 × 5 =
  16. 16.70 × 5 =
  17. 17.63 × 50 =
  18. 18.17 × 50 =
  19. 19.26 × 5 =
  20. 20.17 × 5 =
  21. 21.69 × 50 =
  22. 22.14 × 50 =
  23. 23.67 × 50 =
  24. 24.46 × 50 =
  25. 25.98 × 50 =
  26. 26.79 × 5 =
  27. 27.43 × 5 =
  28. 28.18 × 5 =
  29. 29.96 × 5 =
  30. 30.48 × 50 =
  31. 31.28 × 50 =
  32. 32.41 × 5 =
  33. 33.34 × 50 =
  34. 34.43 × 5 =
  35. 35.87 × 5 =
  36. 36.96 × 5 =
  37. 37.58 × 50 =
  38. 38.76 × 5 =
  39. 39.19 × 5 =
  40. 40.82 × 50 =

Answer key

  1. 115
  2. 3950
  3. 350
  4. 4500
  5. 1200
  6. 3350
  7. 600
  8. 2400
  9. 2500
  10. 3450
  11. 430
  12. 280
  13. 800
  14. 4400
  15. 420
  16. 350
  17. 3150
  18. 850
  19. 130
  20. 85
  21. 3450
  22. 700
  23. 3350
  24. 2300
  25. 4900
  26. 395
  27. 215
  28. 90
  29. 480
  30. 2400
  31. 1400
  32. 205
  33. 1700
  34. 215
  35. 435
  36. 480
  37. 2900
  38. 380
  39. 95
  40. 4100

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