← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 491 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.40 × 4 =
  2. 2.56 × 4 =
  3. 3.22 × 4 =
  4. 4.7 × 4 =
  5. 5.50 × 4 =
  6. 6.13 × 4 =
  7. 7.24 × 4 =
  8. 8.21 × 4 =
  9. 9.36 × 4 =
  10. 10.43 × 4 =
  11. 11.60 × 4 =
  12. 12.19 × 4 =
  13. 13.27 × 4 =
  14. 14.39 × 4 =
  15. 15.53 × 4 =
  16. 16.44 × 4 =
  17. 17.6 × 4 =
  18. 18.12 × 4 =
  19. 19.16 × 4 =
  20. 20.48 × 4 =
  21. 21.33 × 4 =
  22. 22.47 × 4 =
  23. 23.17 × 4 =
  24. 24.54 × 4 =
  25. 25.37 × 4 =
  26. 26.20 × 4 =
  27. 27.26 × 4 =
  28. 28.55 × 4 =
  29. 29.11 × 4 =
  30. 30.59 × 4 =
  31. 31.29 × 4 =
  32. 32.51 × 4 =
  33. 33.28 × 4 =
  34. 34.38 × 4 =
  35. 35.58 × 4 =
  36. 36.31 × 4 =
  37. 37.23 × 4 =
  38. 38.8 × 4 =
  39. 39.42 × 4 =
  40. 40.46 × 4 =

Answer key

  1. 160
  2. 224
  3. 88
  4. 28
  5. 200
  6. 52
  7. 96
  8. 84
  9. 144
  10. 172
  11. 240
  12. 76
  13. 108
  14. 156
  15. 212
  16. 176
  17. 24
  18. 48
  19. 64
  20. 192
  21. 132
  22. 188
  23. 68
  24. 216
  25. 148
  26. 80
  27. 104
  28. 220
  29. 44
  30. 236
  31. 116
  32. 204
  33. 112
  34. 152
  35. 232
  36. 124
  37. 92
  38. 32
  39. 168
  40. 184

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