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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 850 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.20 × 4 =
  2. 2.51 × 4 =
  3. 3.47 × 4 =
  4. 4.54 × 4 =
  5. 5.9 × 4 =
  6. 6.17 × 4 =
  7. 7.7 × 4 =
  8. 8.12 × 4 =
  9. 9.41 × 4 =
  10. 10.29 × 4 =
  11. 11.11 × 4 =
  12. 12.42 × 4 =
  13. 13.27 × 4 =
  14. 14.18 × 4 =
  15. 15.14 × 4 =
  16. 16.28 × 4 =
  17. 17.33 × 4 =
  18. 18.24 × 4 =
  19. 19.48 × 4 =
  20. 20.25 × 4 =
  21. 21.38 × 4 =
  22. 22.19 × 4 =
  23. 23.56 × 4 =
  24. 24.26 × 4 =
  25. 25.13 × 4 =
  26. 26.43 × 4 =
  27. 27.52 × 4 =
  28. 28.23 × 4 =
  29. 29.50 × 4 =
  30. 30.39 × 4 =
  31. 31.55 × 4 =
  32. 32.21 × 4 =
  33. 33.36 × 4 =
  34. 34.16 × 4 =
  35. 35.34 × 4 =
  36. 36.17 × 4 =
  37. 37.8 × 4 =
  38. 38.6 × 4 =
  39. 39.16 × 4 =
  40. 40.31 × 4 =

Answer key

  1. 80
  2. 204
  3. 188
  4. 216
  5. 36
  6. 68
  7. 28
  8. 48
  9. 164
  10. 116
  11. 44
  12. 168
  13. 108
  14. 72
  15. 56
  16. 112
  17. 132
  18. 96
  19. 192
  20. 100
  21. 152
  22. 76
  23. 224
  24. 104
  25. 52
  26. 172
  27. 208
  28. 92
  29. 200
  30. 156
  31. 220
  32. 84
  33. 144
  34. 64
  35. 136
  36. 68
  37. 32
  38. 24
  39. 64
  40. 124

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