← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 853 · 40 questions
TalentJR

The trick (Double double): Double the number. Double the answer again. That is the number × 4.

NameDateTime takenScore ___ / 40
  1. 1.57 × 4 =
  2. 2.12 × 4 =
  3. 3.24 × 4 =
  4. 4.51 × 4 =
  5. 5.47 × 4 =
  6. 6.53 × 4 =
  7. 7.6 × 4 =
  8. 8.29 × 4 =
  9. 9.25 × 4 =
  10. 10.56 × 4 =
  11. 11.58 × 4 =
  12. 12.16 × 4 =
  13. 13.48 × 4 =
  14. 14.17 × 4 =
  15. 15.11 × 4 =
  16. 16.33 × 4 =
  17. 17.59 × 4 =
  18. 18.13 × 4 =
  19. 19.36 × 4 =
  20. 20.21 × 4 =
  21. 21.7 × 4 =
  22. 22.54 × 4 =
  23. 23.19 × 4 =
  24. 24.31 × 4 =
  25. 25.20 × 4 =
  26. 26.27 × 4 =
  27. 27.41 × 4 =
  28. 28.18 × 4 =
  29. 29.37 × 4 =
  30. 30.22 × 4 =
  31. 31.43 × 4 =
  32. 32.34 × 4 =
  33. 33.9 × 4 =
  34. 34.30 × 4 =
  35. 35.14 × 4 =
  36. 36.10 × 4 =
  37. 37.60 × 4 =
  38. 38.8 × 4 =
  39. 39.15 × 4 =
  40. 40.45 × 4 =

Answer key

  1. 228
  2. 48
  3. 96
  4. 204
  5. 188
  6. 212
  7. 24
  8. 116
  9. 100
  10. 224
  11. 232
  12. 64
  13. 192
  14. 68
  15. 44
  16. 132
  17. 236
  18. 52
  19. 144
  20. 84
  21. 28
  22. 216
  23. 76
  24. 124
  25. 80
  26. 108
  27. 164
  28. 72
  29. 148
  30. 88
  31. 172
  32. 136
  33. 36
  34. 120
  35. 56
  36. 40
  37. 240
  38. 32
  39. 60
  40. 180

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