← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 615 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.36 × 4 =
  2. 2.21 × 4 =
  3. 3.22 × 4 =
  4. 4.57 × 4 =
  5. 5.12 × 4 =
  6. 6.50 × 4 =
  7. 7.9 × 4 =
  8. 8.56 × 4 =
  9. 9.15 × 4 =
  10. 10.13 × 4 =
  11. 11.40 × 4 =
  12. 12.29 × 4 =
  13. 13.42 × 4 =
  14. 14.55 × 4 =
  15. 15.32 × 4 =
  16. 16.8 × 4 =
  17. 17.18 × 4 =
  18. 18.6 × 4 =
  19. 19.37 × 4 =
  20. 20.20 × 4 =
  21. 21.44 × 4 =
  22. 22.25 × 4 =
  23. 23.14 × 4 =
  24. 24.27 × 4 =
  25. 25.26 × 4 =
  26. 26.11 × 4 =
  27. 27.46 × 4 =
  28. 28.41 × 4 =
  29. 29.52 × 4 =
  30. 30.48 × 4 =
  31. 31.19 × 4 =
  32. 32.31 × 4 =
  33. 33.39 × 4 =
  34. 34.45 × 4 =
  35. 35.49 × 4 =
  36. 36.7 × 4 =
  37. 37.24 × 4 =
  38. 38.10 × 4 =
  39. 39.54 × 4 =
  40. 40.23 × 4 =

Answer key

  1. 144
  2. 84
  3. 88
  4. 228
  5. 48
  6. 200
  7. 36
  8. 224
  9. 60
  10. 52
  11. 160
  12. 116
  13. 168
  14. 220
  15. 128
  16. 32
  17. 72
  18. 24
  19. 148
  20. 80
  21. 176
  22. 100
  23. 56
  24. 108
  25. 104
  26. 44
  27. 184
  28. 164
  29. 208
  30. 192
  31. 76
  32. 124
  33. 156
  34. 180
  35. 196
  36. 28
  37. 96
  38. 40
  39. 216
  40. 92

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