← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 423 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.31 × 4 =
  2. 2.12 × 4 =
  3. 3.40 × 4 =
  4. 4.15 × 4 =
  5. 5.41 × 4 =
  6. 6.29 × 4 =
  7. 7.59 × 4 =
  8. 8.10 × 4 =
  9. 9.24 × 4 =
  10. 10.17 × 4 =
  11. 11.43 × 4 =
  12. 12.42 × 4 =
  13. 13.6 × 4 =
  14. 14.16 × 4 =
  15. 15.51 × 4 =
  16. 16.38 × 4 =
  17. 17.28 × 4 =
  18. 18.30 × 4 =
  19. 19.53 × 4 =
  20. 20.58 × 4 =
  21. 21.7 × 4 =
  22. 22.25 × 4 =
  23. 23.56 × 4 =
  24. 24.54 × 4 =
  25. 25.11 × 4 =
  26. 26.48 × 4 =
  27. 27.50 × 4 =
  28. 28.57 × 4 =
  29. 29.49 × 4 =
  30. 30.60 × 4 =
  31. 31.46 × 4 =
  32. 32.33 × 4 =
  33. 33.18 × 4 =
  34. 34.32 × 4 =
  35. 35.14 × 4 =
  36. 36.26 × 4 =
  37. 37.22 × 4 =
  38. 38.27 × 4 =
  39. 39.34 × 4 =
  40. 40.19 × 4 =

Answer key

  1. 124
  2. 48
  3. 160
  4. 60
  5. 164
  6. 116
  7. 236
  8. 40
  9. 96
  10. 68
  11. 172
  12. 168
  13. 24
  14. 64
  15. 204
  16. 152
  17. 112
  18. 120
  19. 212
  20. 232
  21. 28
  22. 100
  23. 224
  24. 216
  25. 44
  26. 192
  27. 200
  28. 228
  29. 196
  30. 240
  31. 184
  32. 132
  33. 72
  34. 128
  35. 56
  36. 104
  37. 88
  38. 108
  39. 136
  40. 76

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