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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 139 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.56 × 4 =
  2. 2.34 × 4 =
  3. 3.26 × 4 =
  4. 4.57 × 4 =
  5. 5.32 × 4 =
  6. 6.54 × 4 =
  7. 7.48 × 4 =
  8. 8.46 × 4 =
  9. 9.58 × 4 =
  10. 10.59 × 4 =
  11. 11.42 × 4 =
  12. 12.13 × 4 =
  13. 13.7 × 4 =
  14. 14.11 × 4 =
  15. 15.15 × 4 =
  16. 16.45 × 4 =
  17. 17.41 × 4 =
  18. 18.6 × 4 =
  19. 19.37 × 4 =
  20. 20.24 × 4 =
  21. 21.31 × 4 =
  22. 22.35 × 4 =
  23. 23.17 × 4 =
  24. 24.19 × 4 =
  25. 25.49 × 4 =
  26. 26.10 × 4 =
  27. 27.12 × 4 =
  28. 28.36 × 4 =
  29. 29.50 × 4 =
  30. 30.39 × 4 =
  31. 31.8 × 4 =
  32. 32.30 × 4 =
  33. 33.25 × 4 =
  34. 34.9 × 4 =
  35. 35.53 × 4 =
  36. 36.18 × 4 =
  37. 37.33 × 4 =
  38. 38.24 × 4 =
  39. 39.51 × 4 =
  40. 40.29 × 4 =

Answer key

  1. 224
  2. 136
  3. 104
  4. 228
  5. 128
  6. 216
  7. 192
  8. 184
  9. 232
  10. 236
  11. 168
  12. 52
  13. 28
  14. 44
  15. 60
  16. 180
  17. 164
  18. 24
  19. 148
  20. 96
  21. 124
  22. 140
  23. 68
  24. 76
  25. 196
  26. 40
  27. 48
  28. 144
  29. 200
  30. 156
  31. 32
  32. 120
  33. 100
  34. 36
  35. 212
  36. 72
  37. 132
  38. 96
  39. 204
  40. 116

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