← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 549 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.17 × 4 =
  2. 2.56 × 4 =
  3. 3.19 × 4 =
  4. 4.51 × 4 =
  5. 5.18 × 4 =
  6. 6.12 × 4 =
  7. 7.24 × 4 =
  8. 8.35 × 4 =
  9. 9.59 × 4 =
  10. 10.10 × 4 =
  11. 11.8 × 4 =
  12. 12.46 × 4 =
  13. 13.31 × 4 =
  14. 14.38 × 4 =
  15. 15.23 × 4 =
  16. 16.33 × 4 =
  17. 17.15 × 4 =
  18. 18.22 × 4 =
  19. 19.47 × 4 =
  20. 20.7 × 4 =
  21. 21.34 × 4 =
  22. 22.43 × 4 =
  23. 23.40 × 4 =
  24. 24.39 × 4 =
  25. 25.45 × 4 =
  26. 26.21 × 4 =
  27. 27.30 × 4 =
  28. 28.41 × 4 =
  29. 29.60 × 4 =
  30. 30.27 × 4 =
  31. 31.54 × 4 =
  32. 32.11 × 4 =
  33. 33.28 × 4 =
  34. 34.50 × 4 =
  35. 35.55 × 4 =
  36. 36.37 × 4 =
  37. 37.26 × 4 =
  38. 38.20 × 4 =
  39. 39.36 × 4 =
  40. 40.25 × 4 =

Answer key

  1. 68
  2. 224
  3. 76
  4. 204
  5. 72
  6. 48
  7. 96
  8. 140
  9. 236
  10. 40
  11. 32
  12. 184
  13. 124
  14. 152
  15. 92
  16. 132
  17. 60
  18. 88
  19. 188
  20. 28
  21. 136
  22. 172
  23. 160
  24. 156
  25. 180
  26. 84
  27. 120
  28. 164
  29. 240
  30. 108
  31. 216
  32. 44
  33. 112
  34. 200
  35. 220
  36. 148
  37. 104
  38. 80
  39. 144
  40. 100

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