← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 484 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.53 × 4 =
  2. 2.32 × 4 =
  3. 3.50 × 4 =
  4. 4.28 × 4 =
  5. 5.13 × 4 =
  6. 6.58 × 4 =
  7. 7.36 × 4 =
  8. 8.9 × 4 =
  9. 9.44 × 4 =
  10. 10.46 × 4 =
  11. 11.23 × 4 =
  12. 12.27 × 4 =
  13. 13.40 × 4 =
  14. 14.18 × 4 =
  15. 15.49 × 4 =
  16. 16.14 × 4 =
  17. 17.51 × 4 =
  18. 18.6 × 4 =
  19. 19.31 × 4 =
  20. 20.16 × 4 =
  21. 21.57 × 4 =
  22. 22.12 × 4 =
  23. 23.7 × 4 =
  24. 24.43 × 4 =
  25. 25.39 × 4 =
  26. 26.30 × 4 =
  27. 27.24 × 4 =
  28. 28.59 × 4 =
  29. 29.34 × 4 =
  30. 30.29 × 4 =
  31. 31.10 × 4 =
  32. 32.35 × 4 =
  33. 33.47 × 4 =
  34. 34.38 × 4 =
  35. 35.20 × 4 =
  36. 36.48 × 4 =
  37. 37.11 × 4 =
  38. 38.15 × 4 =
  39. 39.17 × 4 =
  40. 40.19 × 4 =

Answer key

  1. 212
  2. 128
  3. 200
  4. 112
  5. 52
  6. 232
  7. 144
  8. 36
  9. 176
  10. 184
  11. 92
  12. 108
  13. 160
  14. 72
  15. 196
  16. 56
  17. 204
  18. 24
  19. 124
  20. 64
  21. 228
  22. 48
  23. 28
  24. 172
  25. 156
  26. 120
  27. 96
  28. 236
  29. 136
  30. 116
  31. 40
  32. 140
  33. 188
  34. 152
  35. 80
  36. 192
  37. 44
  38. 60
  39. 68
  40. 76

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