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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 152 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.53 × 4 =
  2. 2.13 × 4 =
  3. 3.55 × 4 =
  4. 4.59 × 4 =
  5. 5.60 × 4 =
  6. 6.51 × 4 =
  7. 7.52 × 4 =
  8. 8.28 × 4 =
  9. 9.16 × 4 =
  10. 10.25 × 4 =
  11. 11.31 × 4 =
  12. 12.39 × 4 =
  13. 13.50 × 4 =
  14. 14.6 × 4 =
  15. 15.10 × 4 =
  16. 16.47 × 4 =
  17. 17.35 × 4 =
  18. 18.23 × 4 =
  19. 19.43 × 4 =
  20. 20.26 × 4 =
  21. 21.17 × 4 =
  22. 22.44 × 4 =
  23. 23.32 × 4 =
  24. 24.12 × 4 =
  25. 25.19 × 4 =
  26. 26.30 × 4 =
  27. 27.20 × 4 =
  28. 28.36 × 4 =
  29. 29.21 × 4 =
  30. 30.7 × 4 =
  31. 31.24 × 4 =
  32. 32.11 × 4 =
  33. 33.33 × 4 =
  34. 34.14 × 4 =
  35. 35.27 × 4 =
  36. 36.9 × 4 =
  37. 37.45 × 4 =
  38. 38.40 × 4 =
  39. 39.15 × 4 =
  40. 40.41 × 4 =

Answer key

  1. 212
  2. 52
  3. 220
  4. 236
  5. 240
  6. 204
  7. 208
  8. 112
  9. 64
  10. 100
  11. 124
  12. 156
  13. 200
  14. 24
  15. 40
  16. 188
  17. 140
  18. 92
  19. 172
  20. 104
  21. 68
  22. 176
  23. 128
  24. 48
  25. 76
  26. 120
  27. 80
  28. 144
  29. 84
  30. 28
  31. 96
  32. 44
  33. 132
  34. 56
  35. 108
  36. 36
  37. 180
  38. 160
  39. 60
  40. 164

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