← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 900 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.30 × 4 =
  2. 2.58 × 4 =
  3. 3.40 × 4 =
  4. 4.39 × 4 =
  5. 5.34 × 4 =
  6. 6.41 × 4 =
  7. 7.45 × 4 =
  8. 8.17 × 4 =
  9. 9.48 × 4 =
  10. 10.60 × 4 =
  11. 11.10 × 4 =
  12. 12.13 × 4 =
  13. 13.56 × 4 =
  14. 14.35 × 4 =
  15. 15.59 × 4 =
  16. 16.23 × 4 =
  17. 17.16 × 4 =
  18. 18.51 × 4 =
  19. 19.37 × 4 =
  20. 20.27 × 4 =
  21. 21.42 × 4 =
  22. 22.44 × 4 =
  23. 23.22 × 4 =
  24. 24.15 × 4 =
  25. 25.26 × 4 =
  26. 26.20 × 4 =
  27. 27.47 × 4 =
  28. 28.32 × 4 =
  29. 29.25 × 4 =
  30. 30.12 × 4 =
  31. 31.57 × 4 =
  32. 32.19 × 4 =
  33. 33.28 × 4 =
  34. 34.54 × 4 =
  35. 35.33 × 4 =
  36. 36.14 × 4 =
  37. 37.9 × 4 =
  38. 38.21 × 4 =
  39. 39.11 × 4 =
  40. 40.49 × 4 =

Answer key

  1. 120
  2. 232
  3. 160
  4. 156
  5. 136
  6. 164
  7. 180
  8. 68
  9. 192
  10. 240
  11. 40
  12. 52
  13. 224
  14. 140
  15. 236
  16. 92
  17. 64
  18. 204
  19. 148
  20. 108
  21. 168
  22. 176
  23. 88
  24. 60
  25. 104
  26. 80
  27. 188
  28. 128
  29. 100
  30. 48
  31. 228
  32. 76
  33. 112
  34. 216
  35. 132
  36. 56
  37. 36
  38. 84
  39. 44
  40. 196

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