← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 78 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.19 × 4 =
  2. 2.14 × 4 =
  3. 3.20 × 4 =
  4. 4.32 × 4 =
  5. 5.6 × 4 =
  6. 6.53 × 4 =
  7. 7.7 × 4 =
  8. 8.30 × 4 =
  9. 9.39 × 4 =
  10. 10.15 × 4 =
  11. 11.28 × 4 =
  12. 12.54 × 4 =
  13. 13.13 × 4 =
  14. 14.22 × 4 =
  15. 15.33 × 4 =
  16. 16.35 × 4 =
  17. 17.51 × 4 =
  18. 18.21 × 4 =
  19. 19.9 × 4 =
  20. 20.58 × 4 =
  21. 21.11 × 4 =
  22. 22.36 × 4 =
  23. 23.25 × 4 =
  24. 24.59 × 4 =
  25. 25.47 × 4 =
  26. 26.8 × 4 =
  27. 27.50 × 4 =
  28. 28.46 × 4 =
  29. 29.24 × 4 =
  30. 30.12 × 4 =
  31. 31.42 × 4 =
  32. 32.49 × 4 =
  33. 33.57 × 4 =
  34. 34.13 × 4 =
  35. 35.10 × 4 =
  36. 36.26 × 4 =
  37. 37.38 × 4 =
  38. 38.17 × 4 =
  39. 39.23 × 4 =
  40. 40.18 × 4 =

Answer key

  1. 76
  2. 56
  3. 80
  4. 128
  5. 24
  6. 212
  7. 28
  8. 120
  9. 156
  10. 60
  11. 112
  12. 216
  13. 52
  14. 88
  15. 132
  16. 140
  17. 204
  18. 84
  19. 36
  20. 232
  21. 44
  22. 144
  23. 100
  24. 236
  25. 188
  26. 32
  27. 200
  28. 184
  29. 96
  30. 48
  31. 168
  32. 196
  33. 228
  34. 52
  35. 40
  36. 104
  37. 152
  38. 68
  39. 92
  40. 72

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