← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 108 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.37 × 4 =
  2. 2.11 × 4 =
  3. 3.9 × 4 =
  4. 4.58 × 4 =
  5. 5.48 × 4 =
  6. 6.52 × 4 =
  7. 7.33 × 4 =
  8. 8.57 × 4 =
  9. 9.14 × 4 =
  10. 10.60 × 4 =
  11. 11.19 × 4 =
  12. 12.31 × 4 =
  13. 13.12 × 4 =
  14. 14.16 × 4 =
  15. 15.13 × 4 =
  16. 16.51 × 4 =
  17. 17.40 × 4 =
  18. 18.42 × 4 =
  19. 19.53 × 4 =
  20. 20.23 × 4 =
  21. 21.26 × 4 =
  22. 22.25 × 4 =
  23. 23.59 × 4 =
  24. 24.7 × 4 =
  25. 25.24 × 4 =
  26. 26.32 × 4 =
  27. 27.21 × 4 =
  28. 28.8 × 4 =
  29. 29.28 × 4 =
  30. 30.50 × 4 =
  31. 31.43 × 4 =
  32. 32.38 × 4 =
  33. 33.17 × 4 =
  34. 34.20 × 4 =
  35. 35.45 × 4 =
  36. 36.15 × 4 =
  37. 37.41 × 4 =
  38. 38.55 × 4 =
  39. 39.47 × 4 =
  40. 40.10 × 4 =

Answer key

  1. 148
  2. 44
  3. 36
  4. 232
  5. 192
  6. 208
  7. 132
  8. 228
  9. 56
  10. 240
  11. 76
  12. 124
  13. 48
  14. 64
  15. 52
  16. 204
  17. 160
  18. 168
  19. 212
  20. 92
  21. 104
  22. 100
  23. 236
  24. 28
  25. 96
  26. 128
  27. 84
  28. 32
  29. 112
  30. 200
  31. 172
  32. 152
  33. 68
  34. 80
  35. 180
  36. 60
  37. 164
  38. 220
  39. 188
  40. 40

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