← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 402 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.17 × 4 =
  2. 2.9 × 4 =
  3. 3.8 × 4 =
  4. 4.39 × 4 =
  5. 5.31 × 4 =
  6. 6.16 × 4 =
  7. 7.44 × 4 =
  8. 8.57 × 4 =
  9. 9.46 × 4 =
  10. 10.19 × 4 =
  11. 11.12 × 4 =
  12. 12.22 × 4 =
  13. 13.60 × 4 =
  14. 14.20 × 4 =
  15. 15.14 × 4 =
  16. 16.54 × 4 =
  17. 17.49 × 4 =
  18. 18.47 × 4 =
  19. 19.51 × 4 =
  20. 20.38 × 4 =
  21. 21.21 × 4 =
  22. 22.25 × 4 =
  23. 23.37 × 4 =
  24. 24.11 × 4 =
  25. 25.48 × 4 =
  26. 26.34 × 4 =
  27. 27.23 × 4 =
  28. 28.35 × 4 =
  29. 29.26 × 4 =
  30. 30.13 × 4 =
  31. 31.59 × 4 =
  32. 32.32 × 4 =
  33. 33.55 × 4 =
  34. 34.6 × 4 =
  35. 35.56 × 4 =
  36. 36.27 × 4 =
  37. 37.33 × 4 =
  38. 38.24 × 4 =
  39. 39.50 × 4 =
  40. 40.18 × 4 =

Answer key

  1. 68
  2. 36
  3. 32
  4. 156
  5. 124
  6. 64
  7. 176
  8. 228
  9. 184
  10. 76
  11. 48
  12. 88
  13. 240
  14. 80
  15. 56
  16. 216
  17. 196
  18. 188
  19. 204
  20. 152
  21. 84
  22. 100
  23. 148
  24. 44
  25. 192
  26. 136
  27. 92
  28. 140
  29. 104
  30. 52
  31. 236
  32. 128
  33. 220
  34. 24
  35. 224
  36. 108
  37. 132
  38. 96
  39. 200
  40. 72

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