← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 311 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.53 × 4 =
  2. 2.51 × 4 =
  3. 3.43 × 4 =
  4. 4.16 × 4 =
  5. 5.12 × 4 =
  6. 6.14 × 4 =
  7. 7.42 × 4 =
  8. 8.6 × 4 =
  9. 9.17 × 4 =
  10. 10.19 × 4 =
  11. 11.46 × 4 =
  12. 12.60 × 4 =
  13. 13.25 × 4 =
  14. 14.55 × 4 =
  15. 15.45 × 4 =
  16. 16.50 × 4 =
  17. 17.9 × 4 =
  18. 18.47 × 4 =
  19. 19.44 × 4 =
  20. 20.21 × 4 =
  21. 21.34 × 4 =
  22. 22.28 × 4 =
  23. 23.20 × 4 =
  24. 24.36 × 4 =
  25. 25.52 × 4 =
  26. 26.31 × 4 =
  27. 27.10 × 4 =
  28. 28.33 × 4 =
  29. 29.32 × 4 =
  30. 30.29 × 4 =
  31. 31.56 × 4 =
  32. 32.37 × 4 =
  33. 33.59 × 4 =
  34. 34.27 × 4 =
  35. 35.30 × 4 =
  36. 36.7 × 4 =
  37. 37.38 × 4 =
  38. 38.13 × 4 =
  39. 39.39 × 4 =
  40. 40.49 × 4 =

Answer key

  1. 212
  2. 204
  3. 172
  4. 64
  5. 48
  6. 56
  7. 168
  8. 24
  9. 68
  10. 76
  11. 184
  12. 240
  13. 100
  14. 220
  15. 180
  16. 200
  17. 36
  18. 188
  19. 176
  20. 84
  21. 136
  22. 112
  23. 80
  24. 144
  25. 208
  26. 124
  27. 40
  28. 132
  29. 128
  30. 116
  31. 224
  32. 148
  33. 236
  34. 108
  35. 120
  36. 28
  37. 152
  38. 52
  39. 156
  40. 196

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