← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 332 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.50 × 4 =
  2. 2.41 × 4 =
  3. 3.32 × 4 =
  4. 4.54 × 4 =
  5. 5.31 × 4 =
  6. 6.45 × 4 =
  7. 7.34 × 4 =
  8. 8.16 × 4 =
  9. 9.29 × 4 =
  10. 10.11 × 4 =
  11. 11.14 × 4 =
  12. 12.9 × 4 =
  13. 13.35 × 4 =
  14. 14.8 × 4 =
  15. 15.39 × 4 =
  16. 16.51 × 4 =
  17. 17.19 × 4 =
  18. 18.37 × 4 =
  19. 19.13 × 4 =
  20. 20.20 × 4 =
  21. 21.42 × 4 =
  22. 22.55 × 4 =
  23. 23.27 × 4 =
  24. 24.22 × 4 =
  25. 25.43 × 4 =
  26. 26.49 × 4 =
  27. 27.44 × 4 =
  28. 28.36 × 4 =
  29. 29.40 × 4 =
  30. 30.18 × 4 =
  31. 31.48 × 4 =
  32. 32.24 × 4 =
  33. 33.53 × 4 =
  34. 34.15 × 4 =
  35. 35.60 × 4 =
  36. 36.28 × 4 =
  37. 37.26 × 4 =
  38. 38.56 × 4 =
  39. 39.10 × 4 =
  40. 40.52 × 4 =

Answer key

  1. 200
  2. 164
  3. 128
  4. 216
  5. 124
  6. 180
  7. 136
  8. 64
  9. 116
  10. 44
  11. 56
  12. 36
  13. 140
  14. 32
  15. 156
  16. 204
  17. 76
  18. 148
  19. 52
  20. 80
  21. 168
  22. 220
  23. 108
  24. 88
  25. 172
  26. 196
  27. 176
  28. 144
  29. 160
  30. 72
  31. 192
  32. 96
  33. 212
  34. 60
  35. 240
  36. 112
  37. 104
  38. 224
  39. 40
  40. 208

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