← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 352 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.8 × 4 =
  2. 2.31 × 4 =
  3. 3.60 × 4 =
  4. 4.38 × 4 =
  5. 5.26 × 4 =
  6. 6.15 × 4 =
  7. 7.34 × 4 =
  8. 8.57 × 4 =
  9. 9.37 × 4 =
  10. 10.27 × 4 =
  11. 11.9 × 4 =
  12. 12.6 × 4 =
  13. 13.44 × 4 =
  14. 14.17 × 4 =
  15. 15.7 × 4 =
  16. 16.59 × 4 =
  17. 17.13 × 4 =
  18. 18.19 × 4 =
  19. 19.43 × 4 =
  20. 20.14 × 4 =
  21. 21.58 × 4 =
  22. 22.23 × 4 =
  23. 23.12 × 4 =
  24. 24.36 × 4 =
  25. 25.45 × 4 =
  26. 26.28 × 4 =
  27. 27.56 × 4 =
  28. 28.39 × 4 =
  29. 29.11 × 4 =
  30. 30.48 × 4 =
  31. 31.10 × 4 =
  32. 32.16 × 4 =
  33. 33.51 × 4 =
  34. 34.21 × 4 =
  35. 35.50 × 4 =
  36. 36.29 × 4 =
  37. 37.49 × 4 =
  38. 38.30 × 4 =
  39. 39.20 × 4 =
  40. 40.55 × 4 =

Answer key

  1. 32
  2. 124
  3. 240
  4. 152
  5. 104
  6. 60
  7. 136
  8. 228
  9. 148
  10. 108
  11. 36
  12. 24
  13. 176
  14. 68
  15. 28
  16. 236
  17. 52
  18. 76
  19. 172
  20. 56
  21. 232
  22. 92
  23. 48
  24. 144
  25. 180
  26. 112
  27. 224
  28. 156
  29. 44
  30. 192
  31. 40
  32. 64
  33. 204
  34. 84
  35. 200
  36. 116
  37. 196
  38. 120
  39. 80
  40. 220

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