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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 443 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.27 × 4 =
  2. 2.53 × 4 =
  3. 3.10 × 4 =
  4. 4.20 × 4 =
  5. 5.43 × 4 =
  6. 6.25 × 4 =
  7. 7.14 × 4 =
  8. 8.46 × 4 =
  9. 9.6 × 4 =
  10. 10.13 × 4 =
  11. 11.8 × 4 =
  12. 12.30 × 4 =
  13. 13.11 × 4 =
  14. 14.22 × 4 =
  15. 15.49 × 4 =
  16. 16.9 × 4 =
  17. 17.26 × 4 =
  18. 18.48 × 4 =
  19. 19.54 × 4 =
  20. 20.12 × 4 =
  21. 21.32 × 4 =
  22. 22.21 × 4 =
  23. 23.19 × 4 =
  24. 24.58 × 4 =
  25. 25.28 × 4 =
  26. 26.45 × 4 =
  27. 27.41 × 4 =
  28. 28.34 × 4 =
  29. 29.7 × 4 =
  30. 30.60 × 4 =
  31. 31.56 × 4 =
  32. 32.39 × 4 =
  33. 33.15 × 4 =
  34. 34.40 × 4 =
  35. 35.50 × 4 =
  36. 36.36 × 4 =
  37. 37.18 × 4 =
  38. 38.16 × 4 =
  39. 39.38 × 4 =
  40. 40.42 × 4 =

Answer key

  1. 108
  2. 212
  3. 40
  4. 80
  5. 172
  6. 100
  7. 56
  8. 184
  9. 24
  10. 52
  11. 32
  12. 120
  13. 44
  14. 88
  15. 196
  16. 36
  17. 104
  18. 192
  19. 216
  20. 48
  21. 128
  22. 84
  23. 76
  24. 232
  25. 112
  26. 180
  27. 164
  28. 136
  29. 28
  30. 240
  31. 224
  32. 156
  33. 60
  34. 160
  35. 200
  36. 144
  37. 72
  38. 64
  39. 152
  40. 168

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