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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 607 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.35 × 4 =
  2. 2.29 × 4 =
  3. 3.7 × 4 =
  4. 4.58 × 4 =
  5. 5.31 × 4 =
  6. 6.18 × 4 =
  7. 7.20 × 4 =
  8. 8.21 × 4 =
  9. 9.33 × 4 =
  10. 10.23 × 4 =
  11. 11.27 × 4 =
  12. 12.54 × 4 =
  13. 13.24 × 4 =
  14. 14.30 × 4 =
  15. 15.52 × 4 =
  16. 16.8 × 4 =
  17. 17.37 × 4 =
  18. 18.16 × 4 =
  19. 19.34 × 4 =
  20. 20.17 × 4 =
  21. 21.28 × 4 =
  22. 22.26 × 4 =
  23. 23.25 × 4 =
  24. 24.15 × 4 =
  25. 25.41 × 4 =
  26. 26.9 × 4 =
  27. 27.10 × 4 =
  28. 28.42 × 4 =
  29. 29.14 × 4 =
  30. 30.38 × 4 =
  31. 31.39 × 4 =
  32. 32.59 × 4 =
  33. 33.56 × 4 =
  34. 34.40 × 4 =
  35. 35.6 × 4 =
  36. 36.43 × 4 =
  37. 37.51 × 4 =
  38. 38.13 × 4 =
  39. 39.19 × 4 =
  40. 40.57 × 4 =

Answer key

  1. 140
  2. 116
  3. 28
  4. 232
  5. 124
  6. 72
  7. 80
  8. 84
  9. 132
  10. 92
  11. 108
  12. 216
  13. 96
  14. 120
  15. 208
  16. 32
  17. 148
  18. 64
  19. 136
  20. 68
  21. 112
  22. 104
  23. 100
  24. 60
  25. 164
  26. 36
  27. 40
  28. 168
  29. 56
  30. 152
  31. 156
  32. 236
  33. 224
  34. 160
  35. 24
  36. 172
  37. 204
  38. 52
  39. 76
  40. 228

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