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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 117 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.37 × 4 =
  2. 2.17 × 4 =
  3. 3.15 × 4 =
  4. 4.48 × 4 =
  5. 5.22 × 4 =
  6. 6.36 × 4 =
  7. 7.42 × 4 =
  8. 8.11 × 4 =
  9. 9.24 × 4 =
  10. 10.14 × 4 =
  11. 11.60 × 4 =
  12. 12.21 × 4 =
  13. 13.40 × 4 =
  14. 14.32 × 4 =
  15. 15.35 × 4 =
  16. 16.10 × 4 =
  17. 17.31 × 4 =
  18. 18.38 × 4 =
  19. 19.44 × 4 =
  20. 20.47 × 4 =
  21. 21.45 × 4 =
  22. 22.43 × 4 =
  23. 23.51 × 4 =
  24. 24.53 × 4 =
  25. 25.49 × 4 =
  26. 26.58 × 4 =
  27. 27.26 × 4 =
  28. 28.55 × 4 =
  29. 29.59 × 4 =
  30. 30.27 × 4 =
  31. 31.29 × 4 =
  32. 32.41 × 4 =
  33. 33.6 × 4 =
  34. 34.39 × 4 =
  35. 35.30 × 4 =
  36. 36.19 × 4 =
  37. 37.8 × 4 =
  38. 38.46 × 4 =
  39. 39.28 × 4 =
  40. 40.25 × 4 =

Answer key

  1. 148
  2. 68
  3. 60
  4. 192
  5. 88
  6. 144
  7. 168
  8. 44
  9. 96
  10. 56
  11. 240
  12. 84
  13. 160
  14. 128
  15. 140
  16. 40
  17. 124
  18. 152
  19. 176
  20. 188
  21. 180
  22. 172
  23. 204
  24. 212
  25. 196
  26. 232
  27. 104
  28. 220
  29. 236
  30. 108
  31. 116
  32. 164
  33. 24
  34. 156
  35. 120
  36. 76
  37. 32
  38. 184
  39. 112
  40. 100

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