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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 552 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.23 × 4 =
  2. 2.17 × 4 =
  3. 3.36 × 4 =
  4. 4.8 × 4 =
  5. 5.13 × 4 =
  6. 6.12 × 4 =
  7. 7.20 × 4 =
  8. 8.57 × 4 =
  9. 9.18 × 4 =
  10. 10.27 × 4 =
  11. 11.26 × 4 =
  12. 12.14 × 4 =
  13. 13.21 × 4 =
  14. 14.7 × 4 =
  15. 15.60 × 4 =
  16. 16.15 × 4 =
  17. 17.40 × 4 =
  18. 18.28 × 4 =
  19. 19.58 × 4 =
  20. 20.32 × 4 =
  21. 21.50 × 4 =
  22. 22.53 × 4 =
  23. 23.47 × 4 =
  24. 24.42 × 4 =
  25. 25.10 × 4 =
  26. 26.59 × 4 =
  27. 27.48 × 4 =
  28. 28.6 × 4 =
  29. 29.33 × 4 =
  30. 30.31 × 4 =
  31. 31.41 × 4 =
  32. 32.11 × 4 =
  33. 33.25 × 4 =
  34. 34.30 × 4 =
  35. 35.44 × 4 =
  36. 36.24 × 4 =
  37. 37.37 × 4 =
  38. 38.35 × 4 =
  39. 39.22 × 4 =
  40. 40.51 × 4 =

Answer key

  1. 92
  2. 68
  3. 144
  4. 32
  5. 52
  6. 48
  7. 80
  8. 228
  9. 72
  10. 108
  11. 104
  12. 56
  13. 84
  14. 28
  15. 240
  16. 60
  17. 160
  18. 112
  19. 232
  20. 128
  21. 200
  22. 212
  23. 188
  24. 168
  25. 40
  26. 236
  27. 192
  28. 24
  29. 132
  30. 124
  31. 164
  32. 44
  33. 100
  34. 120
  35. 176
  36. 96
  37. 148
  38. 140
  39. 88
  40. 204

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