← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 301 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.39 × 4 =
  2. 2.36 × 4 =
  3. 3.30 × 4 =
  4. 4.7 × 4 =
  5. 5.38 × 4 =
  6. 6.14 × 4 =
  7. 7.13 × 4 =
  8. 8.45 × 4 =
  9. 9.25 × 4 =
  10. 10.6 × 4 =
  11. 11.53 × 4 =
  12. 12.40 × 4 =
  13. 13.35 × 4 =
  14. 14.11 × 4 =
  15. 15.42 × 4 =
  16. 16.41 × 4 =
  17. 17.9 × 4 =
  18. 18.17 × 4 =
  19. 19.19 × 4 =
  20. 20.43 × 4 =
  21. 21.16 × 4 =
  22. 22.15 × 4 =
  23. 23.23 × 4 =
  24. 24.20 × 4 =
  25. 25.24 × 4 =
  26. 26.54 × 4 =
  27. 27.50 × 4 =
  28. 28.52 × 4 =
  29. 29.47 × 4 =
  30. 30.56 × 4 =
  31. 31.58 × 4 =
  32. 32.31 × 4 =
  33. 33.21 × 4 =
  34. 34.29 × 4 =
  35. 35.55 × 4 =
  36. 36.26 × 4 =
  37. 37.49 × 4 =
  38. 38.32 × 4 =
  39. 39.28 × 4 =
  40. 40.59 × 4 =

Answer key

  1. 156
  2. 144
  3. 120
  4. 28
  5. 152
  6. 56
  7. 52
  8. 180
  9. 100
  10. 24
  11. 212
  12. 160
  13. 140
  14. 44
  15. 168
  16. 164
  17. 36
  18. 68
  19. 76
  20. 172
  21. 64
  22. 60
  23. 92
  24. 80
  25. 96
  26. 216
  27. 200
  28. 208
  29. 188
  30. 224
  31. 232
  32. 124
  33. 84
  34. 116
  35. 220
  36. 104
  37. 196
  38. 128
  39. 112
  40. 236

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