← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 213 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.20 × 4 =
  2. 2.16 × 4 =
  3. 3.14 × 4 =
  4. 4.23 × 4 =
  5. 5.44 × 4 =
  6. 6.36 × 4 =
  7. 7.8 × 4 =
  8. 8.39 × 4 =
  9. 9.42 × 4 =
  10. 10.59 × 4 =
  11. 11.35 × 4 =
  12. 12.40 × 4 =
  13. 13.30 × 4 =
  14. 14.33 × 4 =
  15. 15.31 × 4 =
  16. 16.27 × 4 =
  17. 17.54 × 4 =
  18. 18.22 × 4 =
  19. 19.25 × 4 =
  20. 20.41 × 4 =
  21. 21.28 × 4 =
  22. 22.49 × 4 =
  23. 23.12 × 4 =
  24. 24.34 × 4 =
  25. 25.45 × 4 =
  26. 26.9 × 4 =
  27. 27.18 × 4 =
  28. 28.6 × 4 =
  29. 29.46 × 4 =
  30. 30.58 × 4 =
  31. 31.37 × 4 =
  32. 32.38 × 4 =
  33. 33.13 × 4 =
  34. 34.10 × 4 =
  35. 35.53 × 4 =
  36. 36.52 × 4 =
  37. 37.21 × 4 =
  38. 38.29 × 4 =
  39. 39.60 × 4 =
  40. 40.7 × 4 =

Answer key

  1. 80
  2. 64
  3. 56
  4. 92
  5. 176
  6. 144
  7. 32
  8. 156
  9. 168
  10. 236
  11. 140
  12. 160
  13. 120
  14. 132
  15. 124
  16. 108
  17. 216
  18. 88
  19. 100
  20. 164
  21. 112
  22. 196
  23. 48
  24. 136
  25. 180
  26. 36
  27. 72
  28. 24
  29. 184
  30. 232
  31. 148
  32. 152
  33. 52
  34. 40
  35. 212
  36. 208
  37. 84
  38. 116
  39. 240
  40. 28

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