← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 497 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.11 × 4 =
  2. 2.47 × 4 =
  3. 3.10 × 4 =
  4. 4.24 × 4 =
  5. 5.44 × 4 =
  6. 6.51 × 4 =
  7. 7.55 × 4 =
  8. 8.58 × 4 =
  9. 9.50 × 4 =
  10. 10.56 × 4 =
  11. 11.6 × 4 =
  12. 12.37 × 4 =
  13. 13.46 × 4 =
  14. 14.31 × 4 =
  15. 15.21 × 4 =
  16. 16.48 × 4 =
  17. 17.59 × 4 =
  18. 18.40 × 4 =
  19. 19.17 × 4 =
  20. 20.19 × 4 =
  21. 21.42 × 4 =
  22. 22.12 × 4 =
  23. 23.33 × 4 =
  24. 24.28 × 4 =
  25. 25.52 × 4 =
  26. 26.34 × 4 =
  27. 27.43 × 4 =
  28. 28.27 × 4 =
  29. 29.7 × 4 =
  30. 30.26 × 4 =
  31. 31.38 × 4 =
  32. 32.22 × 4 =
  33. 33.8 × 4 =
  34. 34.16 × 4 =
  35. 35.14 × 4 =
  36. 36.41 × 4 =
  37. 37.23 × 4 =
  38. 38.9 × 4 =
  39. 39.13 × 4 =
  40. 40.25 × 4 =

Answer key

  1. 44
  2. 188
  3. 40
  4. 96
  5. 176
  6. 204
  7. 220
  8. 232
  9. 200
  10. 224
  11. 24
  12. 148
  13. 184
  14. 124
  15. 84
  16. 192
  17. 236
  18. 160
  19. 68
  20. 76
  21. 168
  22. 48
  23. 132
  24. 112
  25. 208
  26. 136
  27. 172
  28. 108
  29. 28
  30. 104
  31. 152
  32. 88
  33. 32
  34. 64
  35. 56
  36. 164
  37. 92
  38. 36
  39. 52
  40. 100

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