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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 103 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.28 × 4 =
  2. 2.57 × 4 =
  3. 3.11 × 4 =
  4. 4.33 × 4 =
  5. 5.27 × 4 =
  6. 6.39 × 4 =
  7. 7.36 × 4 =
  8. 8.60 × 4 =
  9. 9.19 × 4 =
  10. 10.9 × 4 =
  11. 11.7 × 4 =
  12. 12.31 × 4 =
  13. 13.47 × 4 =
  14. 14.37 × 4 =
  15. 15.40 × 4 =
  16. 16.12 × 4 =
  17. 17.18 × 4 =
  18. 18.30 × 4 =
  19. 19.46 × 4 =
  20. 20.16 × 4 =
  21. 21.52 × 4 =
  22. 22.34 × 4 =
  23. 23.26 × 4 =
  24. 24.53 × 4 =
  25. 25.25 × 4 =
  26. 26.8 × 4 =
  27. 27.51 × 4 =
  28. 28.20 × 4 =
  29. 29.22 × 4 =
  30. 30.13 × 4 =
  31. 31.21 × 4 =
  32. 32.48 × 4 =
  33. 33.38 × 4 =
  34. 34.56 × 4 =
  35. 35.55 × 4 =
  36. 36.14 × 4 =
  37. 37.41 × 4 =
  38. 38.23 × 4 =
  39. 39.17 × 4 =
  40. 40.10 × 4 =

Answer key

  1. 112
  2. 228
  3. 44
  4. 132
  5. 108
  6. 156
  7. 144
  8. 240
  9. 76
  10. 36
  11. 28
  12. 124
  13. 188
  14. 148
  15. 160
  16. 48
  17. 72
  18. 120
  19. 184
  20. 64
  21. 208
  22. 136
  23. 104
  24. 212
  25. 100
  26. 32
  27. 204
  28. 80
  29. 88
  30. 52
  31. 84
  32. 192
  33. 152
  34. 224
  35. 220
  36. 56
  37. 164
  38. 92
  39. 68
  40. 40

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