← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 699 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.7 × 4 =
  2. 2.14 × 4 =
  3. 3.26 × 4 =
  4. 4.9 × 4 =
  5. 5.60 × 4 =
  6. 6.24 × 4 =
  7. 7.12 × 4 =
  8. 8.23 × 4 =
  9. 9.13 × 4 =
  10. 10.37 × 4 =
  11. 11.27 × 4 =
  12. 12.57 × 4 =
  13. 13.30 × 4 =
  14. 14.38 × 4 =
  15. 15.22 × 4 =
  16. 16.56 × 4 =
  17. 17.42 × 4 =
  18. 18.48 × 4 =
  19. 19.18 × 4 =
  20. 20.39 × 4 =
  21. 21.40 × 4 =
  22. 22.10 × 4 =
  23. 23.25 × 4 =
  24. 24.49 × 4 =
  25. 25.6 × 4 =
  26. 26.11 × 4 =
  27. 27.35 × 4 =
  28. 28.8 × 4 =
  29. 29.50 × 4 =
  30. 30.36 × 4 =
  31. 31.21 × 4 =
  32. 32.45 × 4 =
  33. 33.43 × 4 =
  34. 34.44 × 4 =
  35. 35.16 × 4 =
  36. 36.32 × 4 =
  37. 37.53 × 4 =
  38. 38.28 × 4 =
  39. 39.59 × 4 =
  40. 40.51 × 4 =

Answer key

  1. 28
  2. 56
  3. 104
  4. 36
  5. 240
  6. 96
  7. 48
  8. 92
  9. 52
  10. 148
  11. 108
  12. 228
  13. 120
  14. 152
  15. 88
  16. 224
  17. 168
  18. 192
  19. 72
  20. 156
  21. 160
  22. 40
  23. 100
  24. 196
  25. 24
  26. 44
  27. 140
  28. 32
  29. 200
  30. 144
  31. 84
  32. 180
  33. 172
  34. 176
  35. 64
  36. 128
  37. 212
  38. 112
  39. 236
  40. 204

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