← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 281 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.38 × 4 =
  2. 2.44 × 4 =
  3. 3.48 × 4 =
  4. 4.31 × 4 =
  5. 5.43 × 4 =
  6. 6.46 × 4 =
  7. 7.33 × 4 =
  8. 8.19 × 4 =
  9. 9.6 × 4 =
  10. 10.41 × 4 =
  11. 11.34 × 4 =
  12. 12.25 × 4 =
  13. 13.13 × 4 =
  14. 14.54 × 4 =
  15. 15.8 × 4 =
  16. 16.20 × 4 =
  17. 17.59 × 4 =
  18. 18.17 × 4 =
  19. 19.47 × 4 =
  20. 20.14 × 4 =
  21. 21.32 × 4 =
  22. 22.53 × 4 =
  23. 23.58 × 4 =
  24. 24.27 × 4 =
  25. 25.12 × 4 =
  26. 26.51 × 4 =
  27. 27.24 × 4 =
  28. 28.22 × 4 =
  29. 29.10 × 4 =
  30. 30.39 × 4 =
  31. 31.42 × 4 =
  32. 32.50 × 4 =
  33. 33.45 × 4 =
  34. 34.56 × 4 =
  35. 35.40 × 4 =
  36. 36.7 × 4 =
  37. 37.15 × 4 =
  38. 38.57 × 4 =
  39. 39.36 × 4 =
  40. 40.55 × 4 =

Answer key

  1. 152
  2. 176
  3. 192
  4. 124
  5. 172
  6. 184
  7. 132
  8. 76
  9. 24
  10. 164
  11. 136
  12. 100
  13. 52
  14. 216
  15. 32
  16. 80
  17. 236
  18. 68
  19. 188
  20. 56
  21. 128
  22. 212
  23. 232
  24. 108
  25. 48
  26. 204
  27. 96
  28. 88
  29. 40
  30. 156
  31. 168
  32. 200
  33. 180
  34. 224
  35. 160
  36. 28
  37. 60
  38. 228
  39. 144
  40. 220

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