← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 141 · 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. 2.40 × 4 =
  3. 3.58 × 4 =
  4. 4.42 × 4 =
  5. 5.44 × 4 =
  6. 6.47 × 4 =
  7. 7.37 × 4 =
  8. 8.11 × 4 =
  9. 9.36 × 4 =
  10. 10.26 × 4 =
  11. 11.13 × 4 =
  12. 12.46 × 4 =
  13. 13.49 × 4 =
  14. 14.12 × 4 =
  15. 15.8 × 4 =
  16. 16.54 × 4 =
  17. 17.55 × 4 =
  18. 18.27 × 4 =
  19. 19.21 × 4 =
  20. 20.28 × 4 =
  21. 21.38 × 4 =
  22. 22.33 × 4 =
  23. 23.22 × 4 =
  24. 24.41 × 4 =
  25. 25.19 × 4 =
  26. 26.51 × 4 =
  27. 27.32 × 4 =
  28. 28.14 × 4 =
  29. 29.45 × 4 =
  30. 30.34 × 4 =
  31. 31.17 × 4 =
  32. 32.20 × 4 =
  33. 33.56 × 4 =
  34. 34.23 × 4 =
  35. 35.35 × 4 =
  36. 36.10 × 4 =
  37. 37.50 × 4 =
  38. 38.9 × 4 =
  39. 39.6 × 4 =
  40. 40.18 × 4 =

Answer key

  1. 124
  2. 160
  3. 232
  4. 168
  5. 176
  6. 188
  7. 148
  8. 44
  9. 144
  10. 104
  11. 52
  12. 184
  13. 196
  14. 48
  15. 32
  16. 216
  17. 220
  18. 108
  19. 84
  20. 112
  21. 152
  22. 132
  23. 88
  24. 164
  25. 76
  26. 204
  27. 128
  28. 56
  29. 180
  30. 136
  31. 68
  32. 80
  33. 224
  34. 92
  35. 140
  36. 40
  37. 200
  38. 36
  39. 24
  40. 72

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