← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 394 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.25 × 4 =
  2. 2.56 × 4 =
  3. 3.43 × 4 =
  4. 4.6 × 4 =
  5. 5.40 × 4 =
  6. 6.59 × 4 =
  7. 7.33 × 4 =
  8. 8.34 × 4 =
  9. 9.39 × 4 =
  10. 10.38 × 4 =
  11. 11.51 × 4 =
  12. 12.53 × 4 =
  13. 13.11 × 4 =
  14. 14.27 × 4 =
  15. 15.23 × 4 =
  16. 16.45 × 4 =
  17. 17.12 × 4 =
  18. 18.19 × 4 =
  19. 19.15 × 4 =
  20. 20.22 × 4 =
  21. 21.57 × 4 =
  22. 22.24 × 4 =
  23. 23.20 × 4 =
  24. 24.17 × 4 =
  25. 25.52 × 4 =
  26. 26.42 × 4 =
  27. 27.13 × 4 =
  28. 28.29 × 4 =
  29. 29.36 × 4 =
  30. 30.35 × 4 =
  31. 31.49 × 4 =
  32. 32.50 × 4 =
  33. 33.58 × 4 =
  34. 34.37 × 4 =
  35. 35.54 × 4 =
  36. 36.18 × 4 =
  37. 37.28 × 4 =
  38. 38.32 × 4 =
  39. 39.16 × 4 =
  40. 40.41 × 4 =

Answer key

  1. 100
  2. 224
  3. 172
  4. 24
  5. 160
  6. 236
  7. 132
  8. 136
  9. 156
  10. 152
  11. 204
  12. 212
  13. 44
  14. 108
  15. 92
  16. 180
  17. 48
  18. 76
  19. 60
  20. 88
  21. 228
  22. 96
  23. 80
  24. 68
  25. 208
  26. 168
  27. 52
  28. 116
  29. 144
  30. 140
  31. 196
  32. 200
  33. 232
  34. 148
  35. 216
  36. 72
  37. 112
  38. 128
  39. 64
  40. 164

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