← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 251 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.22 × 4 =
  2. 2.40 × 4 =
  3. 3.49 × 4 =
  4. 4.7 × 4 =
  5. 5.42 × 4 =
  6. 6.39 × 4 =
  7. 7.21 × 4 =
  8. 8.54 × 4 =
  9. 9.18 × 4 =
  10. 10.52 × 4 =
  11. 11.24 × 4 =
  12. 12.58 × 4 =
  13. 13.48 × 4 =
  14. 14.44 × 4 =
  15. 15.14 × 4 =
  16. 16.15 × 4 =
  17. 17.51 × 4 =
  18. 18.35 × 4 =
  19. 19.33 × 4 =
  20. 20.19 × 4 =
  21. 21.57 × 4 =
  22. 22.55 × 4 =
  23. 23.28 × 4 =
  24. 24.20 × 4 =
  25. 25.10 × 4 =
  26. 26.12 × 4 =
  27. 27.45 × 4 =
  28. 28.46 × 4 =
  29. 29.27 × 4 =
  30. 30.41 × 4 =
  31. 31.50 × 4 =
  32. 32.30 × 4 =
  33. 33.6 × 4 =
  34. 34.59 × 4 =
  35. 35.47 × 4 =
  36. 36.29 × 4 =
  37. 37.43 × 4 =
  38. 38.11 × 4 =
  39. 39.16 × 4 =
  40. 40.56 × 4 =

Answer key

  1. 88
  2. 160
  3. 196
  4. 28
  5. 168
  6. 156
  7. 84
  8. 216
  9. 72
  10. 208
  11. 96
  12. 232
  13. 192
  14. 176
  15. 56
  16. 60
  17. 204
  18. 140
  19. 132
  20. 76
  21. 228
  22. 220
  23. 112
  24. 80
  25. 40
  26. 48
  27. 180
  28. 184
  29. 108
  30. 164
  31. 200
  32. 120
  33. 24
  34. 236
  35. 188
  36. 116
  37. 172
  38. 44
  39. 64
  40. 224

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