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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 868 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.41 × 4 =
  2. 2.8 × 4 =
  3. 3.60 × 4 =
  4. 4.27 × 4 =
  5. 5.45 × 4 =
  6. 6.50 × 4 =
  7. 7.31 × 4 =
  8. 8.14 × 4 =
  9. 9.11 × 4 =
  10. 10.18 × 4 =
  11. 11.37 × 4 =
  12. 12.19 × 4 =
  13. 13.7 × 4 =
  14. 14.24 × 4 =
  15. 15.6 × 4 =
  16. 16.15 × 4 =
  17. 17.17 × 4 =
  18. 18.49 × 4 =
  19. 19.59 × 4 =
  20. 20.47 × 4 =
  21. 21.20 × 4 =
  22. 22.55 × 4 =
  23. 23.26 × 4 =
  24. 24.22 × 4 =
  25. 25.48 × 4 =
  26. 26.32 × 4 =
  27. 27.42 × 4 =
  28. 28.23 × 4 =
  29. 29.36 × 4 =
  30. 30.25 × 4 =
  31. 31.57 × 4 =
  32. 32.43 × 4 =
  33. 33.34 × 4 =
  34. 34.33 × 4 =
  35. 35.38 × 4 =
  36. 36.39 × 4 =
  37. 37.21 × 4 =
  38. 38.28 × 4 =
  39. 39.12 × 4 =
  40. 40.29 × 4 =

Answer key

  1. 164
  2. 32
  3. 240
  4. 108
  5. 180
  6. 200
  7. 124
  8. 56
  9. 44
  10. 72
  11. 148
  12. 76
  13. 28
  14. 96
  15. 24
  16. 60
  17. 68
  18. 196
  19. 236
  20. 188
  21. 80
  22. 220
  23. 104
  24. 88
  25. 192
  26. 128
  27. 168
  28. 92
  29. 144
  30. 100
  31. 228
  32. 172
  33. 136
  34. 132
  35. 152
  36. 156
  37. 84
  38. 112
  39. 48
  40. 116

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