← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 98 · 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. 2.39 × 4 =
  3. 3.13 × 4 =
  4. 4.38 × 4 =
  5. 5.19 × 4 =
  6. 6.45 × 4 =
  7. 7.43 × 4 =
  8. 8.9 × 4 =
  9. 9.30 × 4 =
  10. 10.17 × 4 =
  11. 11.37 × 4 =
  12. 12.34 × 4 =
  13. 13.57 × 4 =
  14. 14.14 × 4 =
  15. 15.15 × 4 =
  16. 16.27 × 4 =
  17. 17.22 × 4 =
  18. 18.55 × 4 =
  19. 19.59 × 4 =
  20. 20.40 × 4 =
  21. 21.23 × 4 =
  22. 22.18 × 4 =
  23. 23.21 × 4 =
  24. 24.50 × 4 =
  25. 25.54 × 4 =
  26. 26.7 × 4 =
  27. 27.12 × 4 =
  28. 28.56 × 4 =
  29. 29.24 × 4 =
  30. 30.41 × 4 =
  31. 31.44 × 4 =
  32. 32.49 × 4 =
  33. 33.52 × 4 =
  34. 34.29 × 4 =
  35. 35.47 × 4 =
  36. 36.16 × 4 =
  37. 37.35 × 4 =
  38. 38.42 × 4 =
  39. 39.31 × 4 =
  40. 40.20 × 4 =

Answer key

  1. 184
  2. 156
  3. 52
  4. 152
  5. 76
  6. 180
  7. 172
  8. 36
  9. 120
  10. 68
  11. 148
  12. 136
  13. 228
  14. 56
  15. 60
  16. 108
  17. 88
  18. 220
  19. 236
  20. 160
  21. 92
  22. 72
  23. 84
  24. 200
  25. 216
  26. 28
  27. 48
  28. 224
  29. 96
  30. 164
  31. 176
  32. 196
  33. 208
  34. 116
  35. 188
  36. 64
  37. 140
  38. 168
  39. 124
  40. 80

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