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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 13 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.55 × 4 =
  2. 2.58 × 4 =
  3. 3.27 × 4 =
  4. 4.44 × 4 =
  5. 5.52 × 4 =
  6. 6.48 × 4 =
  7. 7.12 × 4 =
  8. 8.10 × 4 =
  9. 9.17 × 4 =
  10. 10.43 × 4 =
  11. 11.29 × 4 =
  12. 12.34 × 4 =
  13. 13.57 × 4 =
  14. 14.41 × 4 =
  15. 15.47 × 4 =
  16. 16.21 × 4 =
  17. 17.8 × 4 =
  18. 18.46 × 4 =
  19. 19.36 × 4 =
  20. 20.54 × 4 =
  21. 21.39 × 4 =
  22. 22.32 × 4 =
  23. 23.42 × 4 =
  24. 24.19 × 4 =
  25. 25.40 × 4 =
  26. 26.45 × 4 =
  27. 27.22 × 4 =
  28. 28.35 × 4 =
  29. 29.28 × 4 =
  30. 30.30 × 4 =
  31. 31.15 × 4 =
  32. 32.60 × 4 =
  33. 33.7 × 4 =
  34. 34.13 × 4 =
  35. 35.23 × 4 =
  36. 36.18 × 4 =
  37. 37.51 × 4 =
  38. 38.24 × 4 =
  39. 39.33 × 4 =
  40. 40.49 × 4 =

Answer key

  1. 220
  2. 232
  3. 108
  4. 176
  5. 208
  6. 192
  7. 48
  8. 40
  9. 68
  10. 172
  11. 116
  12. 136
  13. 228
  14. 164
  15. 188
  16. 84
  17. 32
  18. 184
  19. 144
  20. 216
  21. 156
  22. 128
  23. 168
  24. 76
  25. 160
  26. 180
  27. 88
  28. 140
  29. 112
  30. 120
  31. 60
  32. 240
  33. 28
  34. 52
  35. 92
  36. 72
  37. 204
  38. 96
  39. 132
  40. 196

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