← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 147 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.6 × 4 =
  2. 2.18 × 4 =
  3. 3.25 × 4 =
  4. 4.34 × 4 =
  5. 5.14 × 4 =
  6. 6.48 × 4 =
  7. 7.36 × 4 =
  8. 8.52 × 4 =
  9. 9.55 × 4 =
  10. 10.29 × 4 =
  11. 11.44 × 4 =
  12. 12.15 × 4 =
  13. 13.38 × 4 =
  14. 14.23 × 4 =
  15. 15.10 × 4 =
  16. 16.12 × 4 =
  17. 17.32 × 4 =
  18. 18.39 × 4 =
  19. 19.54 × 4 =
  20. 20.26 × 4 =
  21. 21.22 × 4 =
  22. 22.46 × 4 =
  23. 23.53 × 4 =
  24. 24.58 × 4 =
  25. 25.7 × 4 =
  26. 26.60 × 4 =
  27. 27.9 × 4 =
  28. 28.45 × 4 =
  29. 29.35 × 4 =
  30. 30.42 × 4 =
  31. 31.33 × 4 =
  32. 32.17 × 4 =
  33. 33.21 × 4 =
  34. 34.31 × 4 =
  35. 35.27 × 4 =
  36. 36.56 × 4 =
  37. 37.51 × 4 =
  38. 38.8 × 4 =
  39. 39.20 × 4 =
  40. 40.50 × 4 =

Answer key

  1. 24
  2. 72
  3. 100
  4. 136
  5. 56
  6. 192
  7. 144
  8. 208
  9. 220
  10. 116
  11. 176
  12. 60
  13. 152
  14. 92
  15. 40
  16. 48
  17. 128
  18. 156
  19. 216
  20. 104
  21. 88
  22. 184
  23. 212
  24. 232
  25. 28
  26. 240
  27. 36
  28. 180
  29. 140
  30. 168
  31. 132
  32. 68
  33. 84
  34. 124
  35. 108
  36. 224
  37. 204
  38. 32
  39. 80
  40. 200

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