← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 223 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.57 × 4 =
  2. 2.42 × 4 =
  3. 3.43 × 4 =
  4. 4.49 × 4 =
  5. 5.18 × 4 =
  6. 6.37 × 4 =
  7. 7.45 × 4 =
  8. 8.6 × 4 =
  9. 9.19 × 4 =
  10. 10.34 × 4 =
  11. 11.32 × 4 =
  12. 12.51 × 4 =
  13. 13.12 × 4 =
  14. 14.26 × 4 =
  15. 15.23 × 4 =
  16. 16.10 × 4 =
  17. 17.20 × 4 =
  18. 18.33 × 4 =
  19. 19.44 × 4 =
  20. 20.40 × 4 =
  21. 21.16 × 4 =
  22. 22.54 × 4 =
  23. 23.39 × 4 =
  24. 24.53 × 4 =
  25. 25.38 × 4 =
  26. 26.9 × 4 =
  27. 27.56 × 4 =
  28. 28.22 × 4 =
  29. 29.24 × 4 =
  30. 30.21 × 4 =
  31. 31.58 × 4 =
  32. 32.35 × 4 =
  33. 33.15 × 4 =
  34. 34.31 × 4 =
  35. 35.48 × 4 =
  36. 36.60 × 4 =
  37. 37.46 × 4 =
  38. 38.11 × 4 =
  39. 39.8 × 4 =
  40. 40.36 × 4 =

Answer key

  1. 228
  2. 168
  3. 172
  4. 196
  5. 72
  6. 148
  7. 180
  8. 24
  9. 76
  10. 136
  11. 128
  12. 204
  13. 48
  14. 104
  15. 92
  16. 40
  17. 80
  18. 132
  19. 176
  20. 160
  21. 64
  22. 216
  23. 156
  24. 212
  25. 152
  26. 36
  27. 224
  28. 88
  29. 96
  30. 84
  31. 232
  32. 140
  33. 60
  34. 124
  35. 192
  36. 240
  37. 184
  38. 44
  39. 32
  40. 144

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