← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 520 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.18 × 4 =
  2. 2.31 × 4 =
  3. 3.8 × 4 =
  4. 4.20 × 4 =
  5. 5.49 × 4 =
  6. 6.12 × 4 =
  7. 7.59 × 4 =
  8. 8.27 × 4 =
  9. 9.46 × 4 =
  10. 10.45 × 4 =
  11. 11.53 × 4 =
  12. 12.60 × 4 =
  13. 13.37 × 4 =
  14. 14.29 × 4 =
  15. 15.19 × 4 =
  16. 16.32 × 4 =
  17. 17.39 × 4 =
  18. 18.24 × 4 =
  19. 19.9 × 4 =
  20. 20.38 × 4 =
  21. 21.55 × 4 =
  22. 22.6 × 4 =
  23. 23.14 × 4 =
  24. 24.10 × 4 =
  25. 25.28 × 4 =
  26. 26.36 × 4 =
  27. 27.23 × 4 =
  28. 28.40 × 4 =
  29. 29.21 × 4 =
  30. 30.52 × 4 =
  31. 31.17 × 4 =
  32. 32.26 × 4 =
  33. 33.50 × 4 =
  34. 34.51 × 4 =
  35. 35.44 × 4 =
  36. 36.57 × 4 =
  37. 37.34 × 4 =
  38. 38.54 × 4 =
  39. 39.41 × 4 =
  40. 40.11 × 4 =

Answer key

  1. 72
  2. 124
  3. 32
  4. 80
  5. 196
  6. 48
  7. 236
  8. 108
  9. 184
  10. 180
  11. 212
  12. 240
  13. 148
  14. 116
  15. 76
  16. 128
  17. 156
  18. 96
  19. 36
  20. 152
  21. 220
  22. 24
  23. 56
  24. 40
  25. 112
  26. 144
  27. 92
  28. 160
  29. 84
  30. 208
  31. 68
  32. 104
  33. 200
  34. 204
  35. 176
  36. 228
  37. 136
  38. 216
  39. 164
  40. 44

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