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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 324 · 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. 1.28 × 50 =
  2. 2.73 × 50 =
  3. 3.92 × 5 =
  4. 4.19 × 50 =
  5. 5.87 × 50 =
  6. 6.90 × 50 =
  7. 7.22 × 50 =
  8. 8.12 × 5 =
  9. 9.23 × 5 =
  10. 10.47 × 5 =
  11. 11.51 × 5 =
  12. 12.16 × 50 =
  13. 13.54 × 50 =
  14. 14.29 × 5 =
  15. 15.61 × 5 =
  16. 16.80 × 50 =
  17. 17.62 × 5 =
  18. 18.53 × 5 =
  19. 19.92 × 5 =
  20. 20.33 × 5 =
  21. 21.52 × 5 =
  22. 22.50 × 5 =
  23. 23.95 × 5 =
  24. 24.29 × 5 =
  25. 25.44 × 5 =
  26. 26.65 × 50 =
  27. 27.23 × 50 =
  28. 28.30 × 50 =
  29. 29.15 × 5 =
  30. 30.34 × 5 =
  31. 31.64 × 5 =
  32. 32.45 × 50 =
  33. 33.58 × 50 =
  34. 34.72 × 5 =
  35. 35.79 × 50 =
  36. 36.83 × 50 =
  37. 37.17 × 5 =
  38. 38.37 × 5 =
  39. 39.91 × 50 =
  40. 40.56 × 50 =

Answer key

  1. 1400
  2. 3650
  3. 460
  4. 950
  5. 4350
  6. 4500
  7. 1100
  8. 60
  9. 115
  10. 235
  11. 255
  12. 800
  13. 2700
  14. 145
  15. 305
  16. 4000
  17. 310
  18. 265
  19. 460
  20. 165
  21. 260
  22. 250
  23. 475
  24. 145
  25. 220
  26. 3250
  27. 1150
  28. 1500
  29. 75
  30. 170
  31. 320
  32. 2250
  33. 2900
  34. 360
  35. 3950
  36. 4150
  37. 85
  38. 185
  39. 4550
  40. 2800

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