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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 218 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.55 × 4 =
  2. 2.23 × 4 =
  3. 3.10 × 4 =
  4. 4.12 × 4 =
  5. 5.54 × 4 =
  6. 6.45 × 4 =
  7. 7.19 × 4 =
  8. 8.30 × 4 =
  9. 9.9 × 4 =
  10. 10.16 × 4 =
  11. 11.21 × 4 =
  12. 12.58 × 4 =
  13. 13.25 × 4 =
  14. 14.35 × 4 =
  15. 15.50 × 4 =
  16. 16.28 × 4 =
  17. 17.29 × 4 =
  18. 18.48 × 4 =
  19. 19.7 × 4 =
  20. 20.51 × 4 =
  21. 21.17 × 4 =
  22. 22.26 × 4 =
  23. 23.8 × 4 =
  24. 24.6 × 4 =
  25. 25.27 × 4 =
  26. 26.38 × 4 =
  27. 27.20 × 4 =
  28. 28.37 × 4 =
  29. 29.36 × 4 =
  30. 30.43 × 4 =
  31. 31.31 × 4 =
  32. 32.18 × 4 =
  33. 33.47 × 4 =
  34. 34.22 × 4 =
  35. 35.13 × 4 =
  36. 36.34 × 4 =
  37. 37.60 × 4 =
  38. 38.42 × 4 =
  39. 39.14 × 4 =
  40. 40.46 × 4 =

Answer key

  1. 220
  2. 92
  3. 40
  4. 48
  5. 216
  6. 180
  7. 76
  8. 120
  9. 36
  10. 64
  11. 84
  12. 232
  13. 100
  14. 140
  15. 200
  16. 112
  17. 116
  18. 192
  19. 28
  20. 204
  21. 68
  22. 104
  23. 32
  24. 24
  25. 108
  26. 152
  27. 80
  28. 148
  29. 144
  30. 172
  31. 124
  32. 72
  33. 188
  34. 88
  35. 52
  36. 136
  37. 240
  38. 168
  39. 56
  40. 184

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