← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 765 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.30 × 4 =
  2. 2.34 × 4 =
  3. 3.41 × 4 =
  4. 4.14 × 4 =
  5. 5.60 × 4 =
  6. 6.55 × 4 =
  7. 7.11 × 4 =
  8. 8.46 × 4 =
  9. 9.12 × 4 =
  10. 10.28 × 4 =
  11. 11.15 × 4 =
  12. 12.36 × 4 =
  13. 13.31 × 4 =
  14. 14.59 × 4 =
  15. 15.50 × 4 =
  16. 16.7 × 4 =
  17. 17.47 × 4 =
  18. 18.19 × 4 =
  19. 19.24 × 4 =
  20. 20.6 × 4 =
  21. 21.27 × 4 =
  22. 22.37 × 4 =
  23. 23.58 × 4 =
  24. 24.51 × 4 =
  25. 25.26 × 4 =
  26. 26.49 × 4 =
  27. 27.44 × 4 =
  28. 28.40 × 4 =
  29. 29.20 × 4 =
  30. 30.29 × 4 =
  31. 31.25 × 4 =
  32. 32.45 × 4 =
  33. 33.17 × 4 =
  34. 34.9 × 4 =
  35. 35.32 × 4 =
  36. 36.48 × 4 =
  37. 37.33 × 4 =
  38. 38.56 × 4 =
  39. 39.16 × 4 =
  40. 40.21 × 4 =

Answer key

  1. 120
  2. 136
  3. 164
  4. 56
  5. 240
  6. 220
  7. 44
  8. 184
  9. 48
  10. 112
  11. 60
  12. 144
  13. 124
  14. 236
  15. 200
  16. 28
  17. 188
  18. 76
  19. 96
  20. 24
  21. 108
  22. 148
  23. 232
  24. 204
  25. 104
  26. 196
  27. 176
  28. 160
  29. 80
  30. 116
  31. 100
  32. 180
  33. 68
  34. 36
  35. 128
  36. 192
  37. 132
  38. 224
  39. 64
  40. 84

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