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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 61 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.60 × 4 =
  2. 2.40 × 4 =
  3. 3.14 × 4 =
  4. 4.23 × 4 =
  5. 5.31 × 4 =
  6. 6.33 × 4 =
  7. 7.27 × 4 =
  8. 8.42 × 4 =
  9. 9.16 × 4 =
  10. 10.47 × 4 =
  11. 11.25 × 4 =
  12. 12.6 × 4 =
  13. 13.56 × 4 =
  14. 14.20 × 4 =
  15. 15.21 × 4 =
  16. 16.51 × 4 =
  17. 17.43 × 4 =
  18. 18.50 × 4 =
  19. 19.46 × 4 =
  20. 20.13 × 4 =
  21. 21.58 × 4 =
  22. 22.26 × 4 =
  23. 23.44 × 4 =
  24. 24.24 × 4 =
  25. 25.37 × 4 =
  26. 26.29 × 4 =
  27. 27.7 × 4 =
  28. 28.8 × 4 =
  29. 29.59 × 4 =
  30. 30.28 × 4 =
  31. 31.52 × 4 =
  32. 32.36 × 4 =
  33. 33.55 × 4 =
  34. 34.53 × 4 =
  35. 35.15 × 4 =
  36. 36.22 × 4 =
  37. 37.39 × 4 =
  38. 38.10 × 4 =
  39. 39.9 × 4 =
  40. 40.41 × 4 =

Answer key

  1. 240
  2. 160
  3. 56
  4. 92
  5. 124
  6. 132
  7. 108
  8. 168
  9. 64
  10. 188
  11. 100
  12. 24
  13. 224
  14. 80
  15. 84
  16. 204
  17. 172
  18. 200
  19. 184
  20. 52
  21. 232
  22. 104
  23. 176
  24. 96
  25. 148
  26. 116
  27. 28
  28. 32
  29. 236
  30. 112
  31. 208
  32. 144
  33. 220
  34. 212
  35. 60
  36. 88
  37. 156
  38. 40
  39. 36
  40. 164

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