← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 729 · 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. 2.26 × 4 =
  3. 3.16 × 4 =
  4. 4.29 × 4 =
  5. 5.7 × 4 =
  6. 6.25 × 4 =
  7. 7.19 × 4 =
  8. 8.32 × 4 =
  9. 9.21 × 4 =
  10. 10.18 × 4 =
  11. 11.43 × 4 =
  12. 12.50 × 4 =
  13. 13.37 × 4 =
  14. 14.34 × 4 =
  15. 15.10 × 4 =
  16. 16.60 × 4 =
  17. 17.22 × 4 =
  18. 18.36 × 4 =
  19. 19.39 × 4 =
  20. 20.35 × 4 =
  21. 21.17 × 4 =
  22. 22.12 × 4 =
  23. 23.24 × 4 =
  24. 24.15 × 4 =
  25. 25.23 × 4 =
  26. 26.56 × 4 =
  27. 27.33 × 4 =
  28. 28.40 × 4 =
  29. 29.46 × 4 =
  30. 30.47 × 4 =
  31. 31.13 × 4 =
  32. 32.52 × 4 =
  33. 33.49 × 4 =
  34. 34.57 × 4 =
  35. 35.6 × 4 =
  36. 36.45 × 4 =
  37. 37.9 × 4 =
  38. 38.38 × 4 =
  39. 39.54 × 4 =
  40. 40.14 × 4 =

Answer key

  1. 124
  2. 104
  3. 64
  4. 116
  5. 28
  6. 100
  7. 76
  8. 128
  9. 84
  10. 72
  11. 172
  12. 200
  13. 148
  14. 136
  15. 40
  16. 240
  17. 88
  18. 144
  19. 156
  20. 140
  21. 68
  22. 48
  23. 96
  24. 60
  25. 92
  26. 224
  27. 132
  28. 160
  29. 184
  30. 188
  31. 52
  32. 208
  33. 196
  34. 228
  35. 24
  36. 180
  37. 36
  38. 152
  39. 216
  40. 56

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