← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 538 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.47 × 4 =
  2. 2.9 × 4 =
  3. 3.14 × 4 =
  4. 4.22 × 4 =
  5. 5.21 × 4 =
  6. 6.34 × 4 =
  7. 7.38 × 4 =
  8. 8.58 × 4 =
  9. 9.25 × 4 =
  10. 10.26 × 4 =
  11. 11.11 × 4 =
  12. 12.6 × 4 =
  13. 13.50 × 4 =
  14. 14.39 × 4 =
  15. 15.13 × 4 =
  16. 16.42 × 4 =
  17. 17.59 × 4 =
  18. 18.43 × 4 =
  19. 19.49 × 4 =
  20. 20.31 × 4 =
  21. 21.17 × 4 =
  22. 22.51 × 4 =
  23. 23.57 × 4 =
  24. 24.54 × 4 =
  25. 25.29 × 4 =
  26. 26.12 × 4 =
  27. 27.37 × 4 =
  28. 28.24 × 4 =
  29. 29.27 × 4 =
  30. 30.52 × 4 =
  31. 31.8 × 4 =
  32. 32.55 × 4 =
  33. 33.19 × 4 =
  34. 34.48 × 4 =
  35. 35.40 × 4 =
  36. 36.46 × 4 =
  37. 37.18 × 4 =
  38. 38.36 × 4 =
  39. 39.45 × 4 =
  40. 40.35 × 4 =

Answer key

  1. 188
  2. 36
  3. 56
  4. 88
  5. 84
  6. 136
  7. 152
  8. 232
  9. 100
  10. 104
  11. 44
  12. 24
  13. 200
  14. 156
  15. 52
  16. 168
  17. 236
  18. 172
  19. 196
  20. 124
  21. 68
  22. 204
  23. 228
  24. 216
  25. 116
  26. 48
  27. 148
  28. 96
  29. 108
  30. 208
  31. 32
  32. 220
  33. 76
  34. 192
  35. 160
  36. 184
  37. 72
  38. 144
  39. 180
  40. 140

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