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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 86 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.11 × 4 =
  2. 2.30 × 4 =
  3. 3.57 × 4 =
  4. 4.54 × 4 =
  5. 5.28 × 4 =
  6. 6.27 × 4 =
  7. 7.19 × 4 =
  8. 8.25 × 4 =
  9. 9.43 × 4 =
  10. 10.58 × 4 =
  11. 11.51 × 4 =
  12. 12.38 × 4 =
  13. 13.10 × 4 =
  14. 14.16 × 4 =
  15. 15.50 × 4 =
  16. 16.40 × 4 =
  17. 17.41 × 4 =
  18. 18.20 × 4 =
  19. 19.21 × 4 =
  20. 20.46 × 4 =
  21. 21.7 × 4 =
  22. 22.37 × 4 =
  23. 23.32 × 4 =
  24. 24.33 × 4 =
  25. 25.9 × 4 =
  26. 26.17 × 4 =
  27. 27.56 × 4 =
  28. 28.26 × 4 =
  29. 29.42 × 4 =
  30. 30.13 × 4 =
  31. 31.15 × 4 =
  32. 32.22 × 4 =
  33. 33.6 × 4 =
  34. 34.35 × 4 =
  35. 35.39 × 4 =
  36. 36.8 × 4 =
  37. 37.29 × 4 =
  38. 38.18 × 4 =
  39. 39.31 × 4 =
  40. 40.47 × 4 =

Answer key

  1. 44
  2. 120
  3. 228
  4. 216
  5. 112
  6. 108
  7. 76
  8. 100
  9. 172
  10. 232
  11. 204
  12. 152
  13. 40
  14. 64
  15. 200
  16. 160
  17. 164
  18. 80
  19. 84
  20. 184
  21. 28
  22. 148
  23. 128
  24. 132
  25. 36
  26. 68
  27. 224
  28. 104
  29. 168
  30. 52
  31. 60
  32. 88
  33. 24
  34. 140
  35. 156
  36. 32
  37. 116
  38. 72
  39. 124
  40. 188

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