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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 81 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.38 × 4 =
  2. 2.26 × 4 =
  3. 3.57 × 4 =
  4. 4.42 × 4 =
  5. 5.47 × 4 =
  6. 6.30 × 4 =
  7. 7.37 × 4 =
  8. 8.52 × 4 =
  9. 9.39 × 4 =
  10. 10.16 × 4 =
  11. 11.33 × 4 =
  12. 12.10 × 4 =
  13. 13.6 × 4 =
  14. 14.29 × 4 =
  15. 15.11 × 4 =
  16. 16.27 × 4 =
  17. 17.50 × 4 =
  18. 18.13 × 4 =
  19. 19.12 × 4 =
  20. 20.9 × 4 =
  21. 21.28 × 4 =
  22. 22.15 × 4 =
  23. 23.46 × 4 =
  24. 24.54 × 4 =
  25. 25.55 × 4 =
  26. 26.34 × 4 =
  27. 27.44 × 4 =
  28. 28.7 × 4 =
  29. 29.56 × 4 =
  30. 30.21 × 4 =
  31. 31.24 × 4 =
  32. 32.53 × 4 =
  33. 33.35 × 4 =
  34. 34.20 × 4 =
  35. 35.32 × 4 =
  36. 36.22 × 4 =
  37. 37.49 × 4 =
  38. 38.17 × 4 =
  39. 39.60 × 4 =
  40. 40.43 × 4 =

Answer key

  1. 152
  2. 104
  3. 228
  4. 168
  5. 188
  6. 120
  7. 148
  8. 208
  9. 156
  10. 64
  11. 132
  12. 40
  13. 24
  14. 116
  15. 44
  16. 108
  17. 200
  18. 52
  19. 48
  20. 36
  21. 112
  22. 60
  23. 184
  24. 216
  25. 220
  26. 136
  27. 176
  28. 28
  29. 224
  30. 84
  31. 96
  32. 212
  33. 140
  34. 80
  35. 128
  36. 88
  37. 196
  38. 68
  39. 240
  40. 172

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