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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 23 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.14 × 4 =
  2. 2.18 × 4 =
  3. 3.30 × 4 =
  4. 4.10 × 4 =
  5. 5.42 × 4 =
  6. 6.20 × 4 =
  7. 7.59 × 4 =
  8. 8.55 × 4 =
  9. 9.50 × 4 =
  10. 10.44 × 4 =
  11. 11.54 × 4 =
  12. 12.52 × 4 =
  13. 13.19 × 4 =
  14. 14.9 × 4 =
  15. 15.24 × 4 =
  16. 16.21 × 4 =
  17. 17.53 × 4 =
  18. 18.27 × 4 =
  19. 19.34 × 4 =
  20. 20.36 × 4 =
  21. 21.6 × 4 =
  22. 22.22 × 4 =
  23. 23.37 × 4 =
  24. 24.56 × 4 =
  25. 25.8 × 4 =
  26. 26.25 × 4 =
  27. 27.38 × 4 =
  28. 28.32 × 4 =
  29. 29.46 × 4 =
  30. 30.15 × 4 =
  31. 31.16 × 4 =
  32. 32.49 × 4 =
  33. 33.23 × 4 =
  34. 34.51 × 4 =
  35. 35.58 × 4 =
  36. 36.11 × 4 =
  37. 37.12 × 4 =
  38. 38.7 × 4 =
  39. 39.39 × 4 =
  40. 40.60 × 4 =

Answer key

  1. 56
  2. 72
  3. 120
  4. 40
  5. 168
  6. 80
  7. 236
  8. 220
  9. 200
  10. 176
  11. 216
  12. 208
  13. 76
  14. 36
  15. 96
  16. 84
  17. 212
  18. 108
  19. 136
  20. 144
  21. 24
  22. 88
  23. 148
  24. 224
  25. 32
  26. 100
  27. 152
  28. 128
  29. 184
  30. 60
  31. 64
  32. 196
  33. 92
  34. 204
  35. 232
  36. 44
  37. 48
  38. 28
  39. 156
  40. 240

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