← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 889 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.16 × 4 =
  2. 2.33 × 4 =
  3. 3.8 × 4 =
  4. 4.20 × 4 =
  5. 5.48 × 4 =
  6. 6.11 × 4 =
  7. 7.59 × 4 =
  8. 8.28 × 4 =
  9. 9.22 × 4 =
  10. 10.9 × 4 =
  11. 11.12 × 4 =
  12. 12.27 × 4 =
  13. 13.56 × 4 =
  14. 14.36 × 4 =
  15. 15.50 × 4 =
  16. 16.40 × 4 =
  17. 17.58 × 4 =
  18. 18.39 × 4 =
  19. 19.49 × 4 =
  20. 20.13 × 4 =
  21. 21.15 × 4 =
  22. 22.44 × 4 =
  23. 23.7 × 4 =
  24. 24.47 × 4 =
  25. 25.34 × 4 =
  26. 26.53 × 4 =
  27. 27.18 × 4 =
  28. 28.51 × 4 =
  29. 29.14 × 4 =
  30. 30.21 × 4 =
  31. 31.25 × 4 =
  32. 32.6 × 4 =
  33. 33.38 × 4 =
  34. 34.32 × 4 =
  35. 35.45 × 4 =
  36. 36.30 × 4 =
  37. 37.35 × 4 =
  38. 38.55 × 4 =
  39. 39.46 × 4 =
  40. 40.42 × 4 =

Answer key

  1. 64
  2. 132
  3. 32
  4. 80
  5. 192
  6. 44
  7. 236
  8. 112
  9. 88
  10. 36
  11. 48
  12. 108
  13. 224
  14. 144
  15. 200
  16. 160
  17. 232
  18. 156
  19. 196
  20. 52
  21. 60
  22. 176
  23. 28
  24. 188
  25. 136
  26. 212
  27. 72
  28. 204
  29. 56
  30. 84
  31. 100
  32. 24
  33. 152
  34. 128
  35. 180
  36. 120
  37. 140
  38. 220
  39. 184
  40. 168

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