← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

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

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

NameDateTime takenScore ___ / 40
  1. 1.45 × 4 =
  2. 2.13 × 4 =
  3. 3.27 × 4 =
  4. 4.26 × 4 =
  5. 5.15 × 4 =
  6. 6.25 × 4 =
  7. 7.52 × 4 =
  8. 8.20 × 4 =
  9. 9.41 × 4 =
  10. 10.48 × 4 =
  11. 11.18 × 4 =
  12. 12.54 × 4 =
  13. 13.7 × 4 =
  14. 14.39 × 4 =
  15. 15.53 × 4 =
  16. 16.60 × 4 =
  17. 17.38 × 4 =
  18. 18.46 × 4 =
  19. 19.36 × 4 =
  20. 20.43 × 4 =
  21. 21.30 × 4 =
  22. 22.55 × 4 =
  23. 23.10 × 4 =
  24. 24.6 × 4 =
  25. 25.40 × 4 =
  26. 26.12 × 4 =
  27. 27.19 × 4 =
  28. 28.24 × 4 =
  29. 29.34 × 4 =
  30. 30.32 × 4 =
  31. 31.35 × 4 =
  32. 32.29 × 4 =
  33. 33.21 × 4 =
  34. 34.57 × 4 =
  35. 35.11 × 4 =
  36. 36.8 × 4 =
  37. 37.23 × 4 =
  38. 38.31 × 4 =
  39. 39.59 × 4 =
  40. 40.56 × 4 =

Answer key

  1. 180
  2. 52
  3. 108
  4. 104
  5. 60
  6. 100
  7. 208
  8. 80
  9. 164
  10. 192
  11. 72
  12. 216
  13. 28
  14. 156
  15. 212
  16. 240
  17. 152
  18. 184
  19. 144
  20. 172
  21. 120
  22. 220
  23. 40
  24. 24
  25. 160
  26. 48
  27. 76
  28. 96
  29. 136
  30. 128
  31. 140
  32. 116
  33. 84
  34. 228
  35. 44
  36. 32
  37. 92
  38. 124
  39. 236
  40. 224

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