← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 665 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.45 × 4 =
  2. 2.9 × 4 =
  3. 3.41 × 4 =
  4. 4.20 × 4 =
  5. 5.36 × 4 =
  6. 6.14 × 4 =
  7. 7.16 × 4 =
  8. 8.52 × 4 =
  9. 9.42 × 4 =
  10. 10.57 × 4 =
  11. 11.19 × 4 =
  12. 12.43 × 4 =
  13. 13.58 × 4 =
  14. 14.39 × 4 =
  15. 15.47 × 4 =
  16. 16.50 × 4 =
  17. 17.56 × 4 =
  18. 18.49 × 4 =
  19. 19.23 × 4 =
  20. 20.33 × 4 =
  21. 21.35 × 4 =
  22. 22.59 × 4 =
  23. 23.7 × 4 =
  24. 24.54 × 4 =
  25. 25.25 × 4 =
  26. 26.15 × 4 =
  27. 27.22 × 4 =
  28. 28.8 × 4 =
  29. 29.48 × 4 =
  30. 30.28 × 4 =
  31. 31.38 × 4 =
  32. 32.18 × 4 =
  33. 33.27 × 4 =
  34. 34.46 × 4 =
  35. 35.55 × 4 =
  36. 36.53 × 4 =
  37. 37.29 × 4 =
  38. 38.6 × 4 =
  39. 39.30 × 4 =
  40. 40.40 × 4 =

Answer key

  1. 180
  2. 36
  3. 164
  4. 80
  5. 144
  6. 56
  7. 64
  8. 208
  9. 168
  10. 228
  11. 76
  12. 172
  13. 232
  14. 156
  15. 188
  16. 200
  17. 224
  18. 196
  19. 92
  20. 132
  21. 140
  22. 236
  23. 28
  24. 216
  25. 100
  26. 60
  27. 88
  28. 32
  29. 192
  30. 112
  31. 152
  32. 72
  33. 108
  34. 184
  35. 220
  36. 212
  37. 116
  38. 24
  39. 120
  40. 160

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