← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 262 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.43 × 4 =
  2. 2.55 × 4 =
  3. 3.7 × 4 =
  4. 4.37 × 4 =
  5. 5.25 × 4 =
  6. 6.47 × 4 =
  7. 7.45 × 4 =
  8. 8.42 × 4 =
  9. 9.28 × 4 =
  10. 10.40 × 4 =
  11. 11.16 × 4 =
  12. 12.35 × 4 =
  13. 13.11 × 4 =
  14. 14.14 × 4 =
  15. 15.20 × 4 =
  16. 16.12 × 4 =
  17. 17.10 × 4 =
  18. 18.59 × 4 =
  19. 19.9 × 4 =
  20. 20.33 × 4 =
  21. 21.49 × 4 =
  22. 22.48 × 4 =
  23. 23.21 × 4 =
  24. 24.54 × 4 =
  25. 25.13 × 4 =
  26. 26.24 × 4 =
  27. 27.52 × 4 =
  28. 28.27 × 4 =
  29. 29.19 × 4 =
  30. 30.17 × 4 =
  31. 31.44 × 4 =
  32. 32.31 × 4 =
  33. 33.56 × 4 =
  34. 34.34 × 4 =
  35. 35.50 × 4 =
  36. 36.18 × 4 =
  37. 37.6 × 4 =
  38. 38.32 × 4 =
  39. 39.30 × 4 =
  40. 40.46 × 4 =

Answer key

  1. 172
  2. 220
  3. 28
  4. 148
  5. 100
  6. 188
  7. 180
  8. 168
  9. 112
  10. 160
  11. 64
  12. 140
  13. 44
  14. 56
  15. 80
  16. 48
  17. 40
  18. 236
  19. 36
  20. 132
  21. 196
  22. 192
  23. 84
  24. 216
  25. 52
  26. 96
  27. 208
  28. 108
  29. 76
  30. 68
  31. 176
  32. 124
  33. 224
  34. 136
  35. 200
  36. 72
  37. 24
  38. 128
  39. 120
  40. 184

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