← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 456 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.21 × 4 =
  2. 2.17 × 4 =
  3. 3.12 × 4 =
  4. 4.33 × 4 =
  5. 5.60 × 4 =
  6. 6.57 × 4 =
  7. 7.28 × 4 =
  8. 8.39 × 4 =
  9. 9.16 × 4 =
  10. 10.44 × 4 =
  11. 11.50 × 4 =
  12. 12.13 × 4 =
  13. 13.25 × 4 =
  14. 14.23 × 4 =
  15. 15.26 × 4 =
  16. 16.54 × 4 =
  17. 17.19 × 4 =
  18. 18.48 × 4 =
  19. 19.52 × 4 =
  20. 20.58 × 4 =
  21. 21.36 × 4 =
  22. 22.6 × 4 =
  23. 23.18 × 4 =
  24. 24.20 × 4 =
  25. 25.53 × 4 =
  26. 26.51 × 4 =
  27. 27.10 × 4 =
  28. 28.14 × 4 =
  29. 29.30 × 4 =
  30. 30.7 × 4 =
  31. 31.35 × 4 =
  32. 32.11 × 4 =
  33. 33.56 × 4 =
  34. 34.47 × 4 =
  35. 35.32 × 4 =
  36. 36.42 × 4 =
  37. 37.40 × 4 =
  38. 38.9 × 4 =
  39. 39.34 × 4 =
  40. 40.8 × 4 =

Answer key

  1. 84
  2. 68
  3. 48
  4. 132
  5. 240
  6. 228
  7. 112
  8. 156
  9. 64
  10. 176
  11. 200
  12. 52
  13. 100
  14. 92
  15. 104
  16. 216
  17. 76
  18. 192
  19. 208
  20. 232
  21. 144
  22. 24
  23. 72
  24. 80
  25. 212
  26. 204
  27. 40
  28. 56
  29. 120
  30. 28
  31. 140
  32. 44
  33. 224
  34. 188
  35. 128
  36. 168
  37. 160
  38. 36
  39. 136
  40. 32

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