← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 728 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.56 × 4 =
  2. 2.12 × 4 =
  3. 3.41 × 4 =
  4. 4.60 × 4 =
  5. 5.55 × 4 =
  6. 6.6 × 4 =
  7. 7.10 × 4 =
  8. 8.22 × 4 =
  9. 9.18 × 4 =
  10. 10.30 × 4 =
  11. 11.14 × 4 =
  12. 12.44 × 4 =
  13. 13.52 × 4 =
  14. 14.33 × 4 =
  15. 15.9 × 4 =
  16. 16.7 × 4 =
  17. 17.28 × 4 =
  18. 18.34 × 4 =
  19. 19.27 × 4 =
  20. 20.35 × 4 =
  21. 21.38 × 4 =
  22. 22.26 × 4 =
  23. 23.16 × 4 =
  24. 24.8 × 4 =
  25. 25.13 × 4 =
  26. 26.21 × 4 =
  27. 27.47 × 4 =
  28. 28.11 × 4 =
  29. 29.20 × 4 =
  30. 30.46 × 4 =
  31. 31.57 × 4 =
  32. 32.51 × 4 =
  33. 33.49 × 4 =
  34. 34.53 × 4 =
  35. 35.54 × 4 =
  36. 36.45 × 4 =
  37. 37.43 × 4 =
  38. 38.37 × 4 =
  39. 39.15 × 4 =
  40. 40.48 × 4 =

Answer key

  1. 224
  2. 48
  3. 164
  4. 240
  5. 220
  6. 24
  7. 40
  8. 88
  9. 72
  10. 120
  11. 56
  12. 176
  13. 208
  14. 132
  15. 36
  16. 28
  17. 112
  18. 136
  19. 108
  20. 140
  21. 152
  22. 104
  23. 64
  24. 32
  25. 52
  26. 84
  27. 188
  28. 44
  29. 80
  30. 184
  31. 228
  32. 204
  33. 196
  34. 212
  35. 216
  36. 180
  37. 172
  38. 148
  39. 60
  40. 192

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