← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 215 · 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. 2.8 × 4 =
  3. 3.6 × 4 =
  4. 4.50 × 4 =
  5. 5.10 × 4 =
  6. 6.42 × 4 =
  7. 7.32 × 4 =
  8. 8.51 × 4 =
  9. 9.21 × 4 =
  10. 10.16 × 4 =
  11. 11.56 × 4 =
  12. 12.59 × 4 =
  13. 13.55 × 4 =
  14. 14.36 × 4 =
  15. 15.11 × 4 =
  16. 16.40 × 4 =
  17. 17.26 × 4 =
  18. 18.45 × 4 =
  19. 19.54 × 4 =
  20. 20.23 × 4 =
  21. 21.14 × 4 =
  22. 22.35 × 4 =
  23. 23.37 × 4 =
  24. 24.12 × 4 =
  25. 25.17 × 4 =
  26. 26.43 × 4 =
  27. 27.15 × 4 =
  28. 28.48 × 4 =
  29. 29.25 × 4 =
  30. 30.60 × 4 =
  31. 31.28 × 4 =
  32. 32.7 × 4 =
  33. 33.24 × 4 =
  34. 34.46 × 4 =
  35. 35.47 × 4 =
  36. 36.38 × 4 =
  37. 37.33 × 4 =
  38. 38.49 × 4 =
  39. 39.19 × 4 =
  40. 40.41 × 4 =

Answer key

  1. 52
  2. 32
  3. 24
  4. 200
  5. 40
  6. 168
  7. 128
  8. 204
  9. 84
  10. 64
  11. 224
  12. 236
  13. 220
  14. 144
  15. 44
  16. 160
  17. 104
  18. 180
  19. 216
  20. 92
  21. 56
  22. 140
  23. 148
  24. 48
  25. 68
  26. 172
  27. 60
  28. 192
  29. 100
  30. 240
  31. 112
  32. 28
  33. 96
  34. 184
  35. 188
  36. 152
  37. 132
  38. 196
  39. 76
  40. 164

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