← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 38 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.13 × 4 =
  2. 2.25 × 4 =
  3. 3.27 × 4 =
  4. 4.51 × 4 =
  5. 5.38 × 4 =
  6. 6.60 × 4 =
  7. 7.30 × 4 =
  8. 8.24 × 4 =
  9. 9.20 × 4 =
  10. 10.7 × 4 =
  11. 11.17 × 4 =
  12. 12.43 × 4 =
  13. 13.36 × 4 =
  14. 14.26 × 4 =
  15. 15.33 × 4 =
  16. 16.35 × 4 =
  17. 17.28 × 4 =
  18. 18.50 × 4 =
  19. 19.39 × 4 =
  20. 20.40 × 4 =
  21. 21.9 × 4 =
  22. 22.10 × 4 =
  23. 23.14 × 4 =
  24. 24.55 × 4 =
  25. 25.6 × 4 =
  26. 26.18 × 4 =
  27. 27.31 × 4 =
  28. 28.12 × 4 =
  29. 29.44 × 4 =
  30. 30.58 × 4 =
  31. 31.16 × 4 =
  32. 32.49 × 4 =
  33. 33.54 × 4 =
  34. 34.34 × 4 =
  35. 35.23 × 4 =
  36. 36.29 × 4 =
  37. 37.32 × 4 =
  38. 38.59 × 4 =
  39. 39.56 × 4 =
  40. 40.53 × 4 =

Answer key

  1. 52
  2. 100
  3. 108
  4. 204
  5. 152
  6. 240
  7. 120
  8. 96
  9. 80
  10. 28
  11. 68
  12. 172
  13. 144
  14. 104
  15. 132
  16. 140
  17. 112
  18. 200
  19. 156
  20. 160
  21. 36
  22. 40
  23. 56
  24. 220
  25. 24
  26. 72
  27. 124
  28. 48
  29. 176
  30. 232
  31. 64
  32. 196
  33. 216
  34. 136
  35. 92
  36. 116
  37. 128
  38. 236
  39. 224
  40. 212

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