← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 653 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.22 × 4 =
  2. 2.31 × 4 =
  3. 3.48 × 4 =
  4. 4.45 × 4 =
  5. 5.32 × 4 =
  6. 6.17 × 4 =
  7. 7.53 × 4 =
  8. 8.15 × 4 =
  9. 9.7 × 4 =
  10. 10.43 × 4 =
  11. 11.10 × 4 =
  12. 12.16 × 4 =
  13. 13.38 × 4 =
  14. 14.39 × 4 =
  15. 15.52 × 4 =
  16. 16.27 × 4 =
  17. 17.51 × 4 =
  18. 18.8 × 4 =
  19. 19.6 × 4 =
  20. 20.21 × 4 =
  21. 21.20 × 4 =
  22. 22.26 × 4 =
  23. 23.28 × 4 =
  24. 24.29 × 4 =
  25. 25.11 × 4 =
  26. 26.33 × 4 =
  27. 27.42 × 4 =
  28. 28.23 × 4 =
  29. 29.59 × 4 =
  30. 30.49 × 4 =
  31. 31.19 × 4 =
  32. 32.18 × 4 =
  33. 33.56 × 4 =
  34. 34.12 × 4 =
  35. 35.55 × 4 =
  36. 36.37 × 4 =
  37. 37.13 × 4 =
  38. 38.57 × 4 =
  39. 39.9 × 4 =
  40. 40.14 × 4 =

Answer key

  1. 88
  2. 124
  3. 192
  4. 180
  5. 128
  6. 68
  7. 212
  8. 60
  9. 28
  10. 172
  11. 40
  12. 64
  13. 152
  14. 156
  15. 208
  16. 108
  17. 204
  18. 32
  19. 24
  20. 84
  21. 80
  22. 104
  23. 112
  24. 116
  25. 44
  26. 132
  27. 168
  28. 92
  29. 236
  30. 196
  31. 76
  32. 72
  33. 224
  34. 48
  35. 220
  36. 148
  37. 52
  38. 228
  39. 36
  40. 56

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