← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 980 · 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. 2.20 × 4 =
  3. 3.48 × 4 =
  4. 4.16 × 4 =
  5. 5.41 × 4 =
  6. 6.52 × 4 =
  7. 7.39 × 4 =
  8. 8.43 × 4 =
  9. 9.44 × 4 =
  10. 10.10 × 4 =
  11. 11.13 × 4 =
  12. 12.26 × 4 =
  13. 13.50 × 4 =
  14. 14.21 × 4 =
  15. 15.37 × 4 =
  16. 16.31 × 4 =
  17. 17.54 × 4 =
  18. 18.32 × 4 =
  19. 19.27 × 4 =
  20. 20.28 × 4 =
  21. 21.45 × 4 =
  22. 22.23 × 4 =
  23. 23.46 × 4 =
  24. 24.55 × 4 =
  25. 25.30 × 4 =
  26. 26.60 × 4 =
  27. 27.36 × 4 =
  28. 28.9 × 4 =
  29. 29.25 × 4 =
  30. 30.6 × 4 =
  31. 31.53 × 4 =
  32. 32.11 × 4 =
  33. 33.7 × 4 =
  34. 34.42 × 4 =
  35. 35.33 × 4 =
  36. 36.38 × 4 =
  37. 37.35 × 4 =
  38. 38.49 × 4 =
  39. 39.18 × 4 =
  40. 40.47 × 4 =

Answer key

  1. 224
  2. 80
  3. 192
  4. 64
  5. 164
  6. 208
  7. 156
  8. 172
  9. 176
  10. 40
  11. 52
  12. 104
  13. 200
  14. 84
  15. 148
  16. 124
  17. 216
  18. 128
  19. 108
  20. 112
  21. 180
  22. 92
  23. 184
  24. 220
  25. 120
  26. 240
  27. 144
  28. 36
  29. 100
  30. 24
  31. 212
  32. 44
  33. 28
  34. 168
  35. 132
  36. 152
  37. 140
  38. 196
  39. 72
  40. 188

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