← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 275 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.37 × 4 =
  2. 2.13 × 4 =
  3. 3.18 × 4 =
  4. 4.46 × 4 =
  5. 5.17 × 4 =
  6. 6.21 × 4 =
  7. 7.55 × 4 =
  8. 8.53 × 4 =
  9. 9.15 × 4 =
  10. 10.48 × 4 =
  11. 11.34 × 4 =
  12. 12.19 × 4 =
  13. 13.60 × 4 =
  14. 14.58 × 4 =
  15. 15.20 × 4 =
  16. 16.35 × 4 =
  17. 17.45 × 4 =
  18. 18.54 × 4 =
  19. 19.52 × 4 =
  20. 20.8 × 4 =
  21. 21.25 × 4 =
  22. 22.6 × 4 =
  23. 23.24 × 4 =
  24. 24.26 × 4 =
  25. 25.27 × 4 =
  26. 26.36 × 4 =
  27. 27.16 × 4 =
  28. 28.40 × 4 =
  29. 29.30 × 4 =
  30. 30.57 × 4 =
  31. 31.32 × 4 =
  32. 32.38 × 4 =
  33. 33.51 × 4 =
  34. 34.44 × 4 =
  35. 35.14 × 4 =
  36. 36.10 × 4 =
  37. 37.47 × 4 =
  38. 38.39 × 4 =
  39. 39.7 × 4 =
  40. 40.11 × 4 =

Answer key

  1. 148
  2. 52
  3. 72
  4. 184
  5. 68
  6. 84
  7. 220
  8. 212
  9. 60
  10. 192
  11. 136
  12. 76
  13. 240
  14. 232
  15. 80
  16. 140
  17. 180
  18. 216
  19. 208
  20. 32
  21. 100
  22. 24
  23. 96
  24. 104
  25. 108
  26. 144
  27. 64
  28. 160
  29. 120
  30. 228
  31. 128
  32. 152
  33. 204
  34. 176
  35. 56
  36. 40
  37. 188
  38. 156
  39. 28
  40. 44

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