← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 563 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.50 × 4 =
  2. 2.32 × 4 =
  3. 3.8 × 4 =
  4. 4.24 × 4 =
  5. 5.30 × 4 =
  6. 6.49 × 4 =
  7. 7.17 × 4 =
  8. 8.18 × 4 =
  9. 9.36 × 4 =
  10. 10.9 × 4 =
  11. 11.26 × 4 =
  12. 12.45 × 4 =
  13. 13.6 × 4 =
  14. 14.22 × 4 =
  15. 15.13 × 4 =
  16. 16.47 × 4 =
  17. 17.31 × 4 =
  18. 18.43 × 4 =
  19. 19.60 × 4 =
  20. 20.7 × 4 =
  21. 21.37 × 4 =
  22. 22.16 × 4 =
  23. 23.51 × 4 =
  24. 24.38 × 4 =
  25. 25.27 × 4 =
  26. 26.40 × 4 =
  27. 27.11 × 4 =
  28. 28.55 × 4 =
  29. 29.39 × 4 =
  30. 30.42 × 4 =
  31. 31.20 × 4 =
  32. 32.15 × 4 =
  33. 33.52 × 4 =
  34. 34.21 × 4 =
  35. 35.34 × 4 =
  36. 36.10 × 4 =
  37. 37.46 × 4 =
  38. 38.41 × 4 =
  39. 39.53 × 4 =
  40. 40.19 × 4 =

Answer key

  1. 200
  2. 128
  3. 32
  4. 96
  5. 120
  6. 196
  7. 68
  8. 72
  9. 144
  10. 36
  11. 104
  12. 180
  13. 24
  14. 88
  15. 52
  16. 188
  17. 124
  18. 172
  19. 240
  20. 28
  21. 148
  22. 64
  23. 204
  24. 152
  25. 108
  26. 160
  27. 44
  28. 220
  29. 156
  30. 168
  31. 80
  32. 60
  33. 208
  34. 84
  35. 136
  36. 40
  37. 184
  38. 164
  39. 212
  40. 76

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