← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 52 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.43 × 4 =
  2. 2.28 × 4 =
  3. 3.16 × 4 =
  4. 4.20 × 4 =
  5. 5.24 × 4 =
  6. 6.59 × 4 =
  7. 7.58 × 4 =
  8. 8.21 × 4 =
  9. 9.36 × 4 =
  10. 10.38 × 4 =
  11. 11.42 × 4 =
  12. 12.51 × 4 =
  13. 13.32 × 4 =
  14. 14.57 × 4 =
  15. 15.46 × 4 =
  16. 16.37 × 4 =
  17. 17.55 × 4 =
  18. 18.39 × 4 =
  19. 19.54 × 4 =
  20. 20.53 × 4 =
  21. 21.7 × 4 =
  22. 22.23 × 4 =
  23. 23.60 × 4 =
  24. 24.52 × 4 =
  25. 25.15 × 4 =
  26. 26.10 × 4 =
  27. 27.8 × 4 =
  28. 28.17 × 4 =
  29. 29.9 × 4 =
  30. 30.19 × 4 =
  31. 31.33 × 4 =
  32. 32.49 × 4 =
  33. 33.11 × 4 =
  34. 34.26 × 4 =
  35. 35.50 × 4 =
  36. 36.34 × 4 =
  37. 37.40 × 4 =
  38. 38.18 × 4 =
  39. 39.35 × 4 =
  40. 40.41 × 4 =

Answer key

  1. 172
  2. 112
  3. 64
  4. 80
  5. 96
  6. 236
  7. 232
  8. 84
  9. 144
  10. 152
  11. 168
  12. 204
  13. 128
  14. 228
  15. 184
  16. 148
  17. 220
  18. 156
  19. 216
  20. 212
  21. 28
  22. 92
  23. 240
  24. 208
  25. 60
  26. 40
  27. 32
  28. 68
  29. 36
  30. 76
  31. 132
  32. 196
  33. 44
  34. 104
  35. 200
  36. 136
  37. 160
  38. 72
  39. 140
  40. 164

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