← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 800 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.46 × 4 =
  2. 2.47 × 4 =
  3. 3.45 × 4 =
  4. 4.59 × 4 =
  5. 5.41 × 4 =
  6. 6.53 × 4 =
  7. 7.44 × 4 =
  8. 8.22 × 4 =
  9. 9.52 × 4 =
  10. 10.27 × 4 =
  11. 11.18 × 4 =
  12. 12.49 × 4 =
  13. 13.20 × 4 =
  14. 14.21 × 4 =
  15. 15.57 × 4 =
  16. 16.40 × 4 =
  17. 17.37 × 4 =
  18. 18.56 × 4 =
  19. 19.9 × 4 =
  20. 20.19 × 4 =
  21. 21.38 × 4 =
  22. 22.42 × 4 =
  23. 23.16 × 4 =
  24. 24.13 × 4 =
  25. 25.32 × 4 =
  26. 26.54 × 4 =
  27. 27.7 × 4 =
  28. 28.15 × 4 =
  29. 29.17 × 4 =
  30. 30.48 × 4 =
  31. 31.58 × 4 =
  32. 32.35 × 4 =
  33. 33.24 × 4 =
  34. 34.50 × 4 =
  35. 35.23 × 4 =
  36. 36.10 × 4 =
  37. 37.30 × 4 =
  38. 38.11 × 4 =
  39. 39.29 × 4 =
  40. 40.28 × 4 =

Answer key

  1. 184
  2. 188
  3. 180
  4. 236
  5. 164
  6. 212
  7. 176
  8. 88
  9. 208
  10. 108
  11. 72
  12. 196
  13. 80
  14. 84
  15. 228
  16. 160
  17. 148
  18. 224
  19. 36
  20. 76
  21. 152
  22. 168
  23. 64
  24. 52
  25. 128
  26. 216
  27. 28
  28. 60
  29. 68
  30. 192
  31. 232
  32. 140
  33. 96
  34. 200
  35. 92
  36. 40
  37. 120
  38. 44
  39. 116
  40. 112

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