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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 39 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.8 × 4 =
  2. 2.7 × 4 =
  3. 3.51 × 4 =
  4. 4.43 × 4 =
  5. 5.14 × 4 =
  6. 6.53 × 4 =
  7. 7.12 × 4 =
  8. 8.46 × 4 =
  9. 9.21 × 4 =
  10. 10.44 × 4 =
  11. 11.35 × 4 =
  12. 12.22 × 4 =
  13. 13.26 × 4 =
  14. 14.57 × 4 =
  15. 15.34 × 4 =
  16. 16.56 × 4 =
  17. 17.50 × 4 =
  18. 18.39 × 4 =
  19. 19.15 × 4 =
  20. 20.54 × 4 =
  21. 21.23 × 4 =
  22. 22.52 × 4 =
  23. 23.13 × 4 =
  24. 24.27 × 4 =
  25. 25.38 × 4 =
  26. 26.20 × 4 =
  27. 27.9 × 4 =
  28. 28.37 × 4 =
  29. 29.31 × 4 =
  30. 30.55 × 4 =
  31. 31.16 × 4 =
  32. 32.32 × 4 =
  33. 33.10 × 4 =
  34. 34.41 × 4 =
  35. 35.19 × 4 =
  36. 36.17 × 4 =
  37. 37.42 × 4 =
  38. 38.28 × 4 =
  39. 39.18 × 4 =
  40. 40.11 × 4 =

Answer key

  1. 32
  2. 28
  3. 204
  4. 172
  5. 56
  6. 212
  7. 48
  8. 184
  9. 84
  10. 176
  11. 140
  12. 88
  13. 104
  14. 228
  15. 136
  16. 224
  17. 200
  18. 156
  19. 60
  20. 216
  21. 92
  22. 208
  23. 52
  24. 108
  25. 152
  26. 80
  27. 36
  28. 148
  29. 124
  30. 220
  31. 64
  32. 128
  33. 40
  34. 164
  35. 76
  36. 68
  37. 168
  38. 112
  39. 72
  40. 44

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