← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 361 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.8 × 4 =
  2. 2.39 × 4 =
  3. 3.55 × 4 =
  4. 4.58 × 4 =
  5. 5.59 × 4 =
  6. 6.10 × 4 =
  7. 7.46 × 4 =
  8. 8.21 × 4 =
  9. 9.19 × 4 =
  10. 10.15 × 4 =
  11. 11.44 × 4 =
  12. 12.31 × 4 =
  13. 13.9 × 4 =
  14. 14.18 × 4 =
  15. 15.51 × 4 =
  16. 16.25 × 4 =
  17. 17.24 × 4 =
  18. 18.13 × 4 =
  19. 19.50 × 4 =
  20. 20.23 × 4 =
  21. 21.38 × 4 =
  22. 22.60 × 4 =
  23. 23.32 × 4 =
  24. 24.47 × 4 =
  25. 25.12 × 4 =
  26. 26.14 × 4 =
  27. 27.45 × 4 =
  28. 28.57 × 4 =
  29. 29.40 × 4 =
  30. 30.37 × 4 =
  31. 31.35 × 4 =
  32. 32.16 × 4 =
  33. 33.29 × 4 =
  34. 34.22 × 4 =
  35. 35.53 × 4 =
  36. 36.11 × 4 =
  37. 37.52 × 4 =
  38. 38.27 × 4 =
  39. 39.33 × 4 =
  40. 40.49 × 4 =

Answer key

  1. 32
  2. 156
  3. 220
  4. 232
  5. 236
  6. 40
  7. 184
  8. 84
  9. 76
  10. 60
  11. 176
  12. 124
  13. 36
  14. 72
  15. 204
  16. 100
  17. 96
  18. 52
  19. 200
  20. 92
  21. 152
  22. 240
  23. 128
  24. 188
  25. 48
  26. 56
  27. 180
  28. 228
  29. 160
  30. 148
  31. 140
  32. 64
  33. 116
  34. 88
  35. 212
  36. 44
  37. 208
  38. 108
  39. 132
  40. 196

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