← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 938 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.32 × 4 =
  2. 2.42 × 4 =
  3. 3.38 × 4 =
  4. 4.46 × 4 =
  5. 5.13 × 4 =
  6. 6.33 × 4 =
  7. 7.48 × 4 =
  8. 8.56 × 4 =
  9. 9.29 × 4 =
  10. 10.40 × 4 =
  11. 11.8 × 4 =
  12. 12.53 × 4 =
  13. 13.60 × 4 =
  14. 14.10 × 4 =
  15. 15.54 × 4 =
  16. 16.41 × 4 =
  17. 17.22 × 4 =
  18. 18.27 × 4 =
  19. 19.59 × 4 =
  20. 20.6 × 4 =
  21. 21.51 × 4 =
  22. 22.44 × 4 =
  23. 23.23 × 4 =
  24. 24.34 × 4 =
  25. 25.47 × 4 =
  26. 26.18 × 4 =
  27. 27.20 × 4 =
  28. 28.19 × 4 =
  29. 29.16 × 4 =
  30. 30.50 × 4 =
  31. 31.39 × 4 =
  32. 32.12 × 4 =
  33. 33.36 × 4 =
  34. 34.7 × 4 =
  35. 35.43 × 4 =
  36. 36.30 × 4 =
  37. 37.15 × 4 =
  38. 38.37 × 4 =
  39. 39.21 × 4 =
  40. 40.9 × 4 =

Answer key

  1. 128
  2. 168
  3. 152
  4. 184
  5. 52
  6. 132
  7. 192
  8. 224
  9. 116
  10. 160
  11. 32
  12. 212
  13. 240
  14. 40
  15. 216
  16. 164
  17. 88
  18. 108
  19. 236
  20. 24
  21. 204
  22. 176
  23. 92
  24. 136
  25. 188
  26. 72
  27. 80
  28. 76
  29. 64
  30. 200
  31. 156
  32. 48
  33. 144
  34. 28
  35. 172
  36. 120
  37. 60
  38. 148
  39. 84
  40. 36

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