← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 409 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.11 × 4 =
  2. 2.43 × 4 =
  3. 3.13 × 4 =
  4. 4.42 × 4 =
  5. 5.14 × 4 =
  6. 6.34 × 4 =
  7. 7.44 × 4 =
  8. 8.59 × 4 =
  9. 9.58 × 4 =
  10. 10.12 × 4 =
  11. 11.22 × 4 =
  12. 12.57 × 4 =
  13. 13.56 × 4 =
  14. 14.7 × 4 =
  15. 15.19 × 4 =
  16. 16.60 × 4 =
  17. 17.29 × 4 =
  18. 18.55 × 4 =
  19. 19.46 × 4 =
  20. 20.41 × 4 =
  21. 21.32 × 4 =
  22. 22.16 × 4 =
  23. 23.52 × 4 =
  24. 24.33 × 4 =
  25. 25.8 × 4 =
  26. 26.24 × 4 =
  27. 27.25 × 4 =
  28. 28.37 × 4 =
  29. 29.49 × 4 =
  30. 30.48 × 4 =
  31. 31.6 × 4 =
  32. 32.51 × 4 =
  33. 33.17 × 4 =
  34. 34.47 × 4 =
  35. 35.23 × 4 =
  36. 36.20 × 4 =
  37. 37.31 × 4 =
  38. 38.18 × 4 =
  39. 39.10 × 4 =
  40. 40.30 × 4 =

Answer key

  1. 44
  2. 172
  3. 52
  4. 168
  5. 56
  6. 136
  7. 176
  8. 236
  9. 232
  10. 48
  11. 88
  12. 228
  13. 224
  14. 28
  15. 76
  16. 240
  17. 116
  18. 220
  19. 184
  20. 164
  21. 128
  22. 64
  23. 208
  24. 132
  25. 32
  26. 96
  27. 100
  28. 148
  29. 196
  30. 192
  31. 24
  32. 204
  33. 68
  34. 188
  35. 92
  36. 80
  37. 124
  38. 72
  39. 40
  40. 120

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