← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 999 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.25 × 4 =
  2. 2.16 × 4 =
  3. 3.39 × 4 =
  4. 4.23 × 4 =
  5. 5.19 × 4 =
  6. 6.30 × 4 =
  7. 7.22 × 4 =
  8. 8.48 × 4 =
  9. 9.44 × 4 =
  10. 10.57 × 4 =
  11. 11.21 × 4 =
  12. 12.42 × 4 =
  13. 13.36 × 4 =
  14. 14.54 × 4 =
  15. 15.20 × 4 =
  16. 16.13 × 4 =
  17. 17.26 × 4 =
  18. 18.18 × 4 =
  19. 19.47 × 4 =
  20. 20.41 × 4 =
  21. 21.32 × 4 =
  22. 22.24 × 4 =
  23. 23.38 × 4 =
  24. 24.11 × 4 =
  25. 25.28 × 4 =
  26. 26.52 × 4 =
  27. 27.58 × 4 =
  28. 28.35 × 4 =
  29. 29.51 × 4 =
  30. 30.10 × 4 =
  31. 31.29 × 4 =
  32. 32.8 × 4 =
  33. 33.49 × 4 =
  34. 34.31 × 4 =
  35. 35.27 × 4 =
  36. 36.40 × 4 =
  37. 37.53 × 4 =
  38. 38.15 × 4 =
  39. 39.45 × 4 =
  40. 40.7 × 4 =

Answer key

  1. 100
  2. 64
  3. 156
  4. 92
  5. 76
  6. 120
  7. 88
  8. 192
  9. 176
  10. 228
  11. 84
  12. 168
  13. 144
  14. 216
  15. 80
  16. 52
  17. 104
  18. 72
  19. 188
  20. 164
  21. 128
  22. 96
  23. 152
  24. 44
  25. 112
  26. 208
  27. 232
  28. 140
  29. 204
  30. 40
  31. 116
  32. 32
  33. 196
  34. 124
  35. 108
  36. 160
  37. 212
  38. 60
  39. 180
  40. 28

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