← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 810 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.17 × 4 =
  2. 2.50 × 4 =
  3. 3.28 × 4 =
  4. 4.29 × 4 =
  5. 5.6 × 4 =
  6. 6.26 × 4 =
  7. 7.11 × 4 =
  8. 8.33 × 4 =
  9. 9.14 × 4 =
  10. 10.36 × 4 =
  11. 11.15 × 4 =
  12. 12.53 × 4 =
  13. 13.12 × 4 =
  14. 14.41 × 4 =
  15. 15.49 × 4 =
  16. 16.16 × 4 =
  17. 17.46 × 4 =
  18. 18.27 × 4 =
  19. 19.22 × 4 =
  20. 20.47 × 4 =
  21. 21.44 × 4 =
  22. 22.31 × 4 =
  23. 23.42 × 4 =
  24. 24.13 × 4 =
  25. 25.32 × 4 =
  26. 26.43 × 4 =
  27. 27.52 × 4 =
  28. 28.30 × 4 =
  29. 29.34 × 4 =
  30. 30.45 × 4 =
  31. 31.24 × 4 =
  32. 32.21 × 4 =
  33. 33.39 × 4 =
  34. 34.57 × 4 =
  35. 35.58 × 4 =
  36. 36.9 × 4 =
  37. 37.55 × 4 =
  38. 38.7 × 4 =
  39. 39.56 × 4 =
  40. 40.20 × 4 =

Answer key

  1. 68
  2. 200
  3. 112
  4. 116
  5. 24
  6. 104
  7. 44
  8. 132
  9. 56
  10. 144
  11. 60
  12. 212
  13. 48
  14. 164
  15. 196
  16. 64
  17. 184
  18. 108
  19. 88
  20. 188
  21. 176
  22. 124
  23. 168
  24. 52
  25. 128
  26. 172
  27. 208
  28. 120
  29. 136
  30. 180
  31. 96
  32. 84
  33. 156
  34. 228
  35. 232
  36. 36
  37. 220
  38. 28
  39. 224
  40. 80

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