← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 654 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.50 × 4 =
  2. 2.9 × 4 =
  3. 3.45 × 4 =
  4. 4.44 × 4 =
  5. 5.25 × 4 =
  6. 6.54 × 4 =
  7. 7.24 × 4 =
  8. 8.16 × 4 =
  9. 9.29 × 4 =
  10. 10.22 × 4 =
  11. 11.8 × 4 =
  12. 12.58 × 4 =
  13. 13.20 × 4 =
  14. 14.34 × 4 =
  15. 15.48 × 4 =
  16. 16.11 × 4 =
  17. 17.14 × 4 =
  18. 18.55 × 4 =
  19. 19.19 × 4 =
  20. 20.17 × 4 =
  21. 21.23 × 4 =
  22. 22.35 × 4 =
  23. 23.33 × 4 =
  24. 24.31 × 4 =
  25. 25.57 × 4 =
  26. 26.13 × 4 =
  27. 27.53 × 4 =
  28. 28.51 × 4 =
  29. 29.60 × 4 =
  30. 30.28 × 4 =
  31. 31.59 × 4 =
  32. 32.38 × 4 =
  33. 33.7 × 4 =
  34. 34.43 × 4 =
  35. 35.39 × 4 =
  36. 36.42 × 4 =
  37. 37.41 × 4 =
  38. 38.27 × 4 =
  39. 39.12 × 4 =
  40. 40.10 × 4 =

Answer key

  1. 200
  2. 36
  3. 180
  4. 176
  5. 100
  6. 216
  7. 96
  8. 64
  9. 116
  10. 88
  11. 32
  12. 232
  13. 80
  14. 136
  15. 192
  16. 44
  17. 56
  18. 220
  19. 76
  20. 68
  21. 92
  22. 140
  23. 132
  24. 124
  25. 228
  26. 52
  27. 212
  28. 204
  29. 240
  30. 112
  31. 236
  32. 152
  33. 28
  34. 172
  35. 156
  36. 168
  37. 164
  38. 108
  39. 48
  40. 40

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