← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 155 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.8 × 4 =
  2. 2.60 × 4 =
  3. 3.6 × 4 =
  4. 4.18 × 4 =
  5. 5.37 × 4 =
  6. 6.27 × 4 =
  7. 7.40 × 4 =
  8. 8.7 × 4 =
  9. 9.34 × 4 =
  10. 10.56 × 4 =
  11. 11.21 × 4 =
  12. 12.31 × 4 =
  13. 13.14 × 4 =
  14. 14.19 × 4 =
  15. 15.54 × 4 =
  16. 16.26 × 4 =
  17. 17.9 × 4 =
  18. 18.41 × 4 =
  19. 19.42 × 4 =
  20. 20.12 × 4 =
  21. 21.58 × 4 =
  22. 22.17 × 4 =
  23. 23.20 × 4 =
  24. 24.10 × 4 =
  25. 25.38 × 4 =
  26. 26.53 × 4 =
  27. 27.59 × 4 =
  28. 28.46 × 4 =
  29. 29.25 × 4 =
  30. 30.30 × 4 =
  31. 31.11 × 4 =
  32. 32.23 × 4 =
  33. 33.47 × 4 =
  34. 34.50 × 4 =
  35. 35.43 × 4 =
  36. 36.16 × 4 =
  37. 37.44 × 4 =
  38. 38.39 × 4 =
  39. 39.51 × 4 =
  40. 40.49 × 4 =

Answer key

  1. 32
  2. 240
  3. 24
  4. 72
  5. 148
  6. 108
  7. 160
  8. 28
  9. 136
  10. 224
  11. 84
  12. 124
  13. 56
  14. 76
  15. 216
  16. 104
  17. 36
  18. 164
  19. 168
  20. 48
  21. 232
  22. 68
  23. 80
  24. 40
  25. 152
  26. 212
  27. 236
  28. 184
  29. 100
  30. 120
  31. 44
  32. 92
  33. 188
  34. 200
  35. 172
  36. 64
  37. 176
  38. 156
  39. 204
  40. 196

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