← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 907 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.40 × 4 =
  2. 2.31 × 4 =
  3. 3.46 × 4 =
  4. 4.44 × 4 =
  5. 5.51 × 4 =
  6. 6.33 × 4 =
  7. 7.38 × 4 =
  8. 8.58 × 4 =
  9. 9.39 × 4 =
  10. 10.34 × 4 =
  11. 11.20 × 4 =
  12. 12.57 × 4 =
  13. 13.49 × 4 =
  14. 14.23 × 4 =
  15. 15.47 × 4 =
  16. 16.6 × 4 =
  17. 17.43 × 4 =
  18. 18.52 × 4 =
  19. 19.9 × 4 =
  20. 20.36 × 4 =
  21. 21.13 × 4 =
  22. 22.8 × 4 =
  23. 23.56 × 4 =
  24. 24.25 × 4 =
  25. 25.59 × 4 =
  26. 26.21 × 4 =
  27. 27.54 × 4 =
  28. 28.22 × 4 =
  29. 29.14 × 4 =
  30. 30.12 × 4 =
  31. 31.19 × 4 =
  32. 32.7 × 4 =
  33. 33.28 × 4 =
  34. 34.27 × 4 =
  35. 35.29 × 4 =
  36. 36.16 × 4 =
  37. 37.42 × 4 =
  38. 38.30 × 4 =
  39. 39.18 × 4 =
  40. 40.24 × 4 =

Answer key

  1. 160
  2. 124
  3. 184
  4. 176
  5. 204
  6. 132
  7. 152
  8. 232
  9. 156
  10. 136
  11. 80
  12. 228
  13. 196
  14. 92
  15. 188
  16. 24
  17. 172
  18. 208
  19. 36
  20. 144
  21. 52
  22. 32
  23. 224
  24. 100
  25. 236
  26. 84
  27. 216
  28. 88
  29. 56
  30. 48
  31. 76
  32. 28
  33. 112
  34. 108
  35. 116
  36. 64
  37. 168
  38. 120
  39. 72
  40. 96

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