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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 507 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.9 × 4 =
  2. 2.48 × 4 =
  3. 3.32 × 4 =
  4. 4.15 × 4 =
  5. 5.11 × 4 =
  6. 6.60 × 4 =
  7. 7.38 × 4 =
  8. 8.18 × 4 =
  9. 9.7 × 4 =
  10. 10.39 × 4 =
  11. 11.44 × 4 =
  12. 12.33 × 4 =
  13. 13.53 × 4 =
  14. 14.50 × 4 =
  15. 15.27 × 4 =
  16. 16.41 × 4 =
  17. 17.29 × 4 =
  18. 18.26 × 4 =
  19. 19.42 × 4 =
  20. 20.40 × 4 =
  21. 21.6 × 4 =
  22. 22.28 × 4 =
  23. 23.36 × 4 =
  24. 24.47 × 4 =
  25. 25.37 × 4 =
  26. 26.8 × 4 =
  27. 27.49 × 4 =
  28. 28.10 × 4 =
  29. 29.21 × 4 =
  30. 30.19 × 4 =
  31. 31.54 × 4 =
  32. 32.20 × 4 =
  33. 33.13 × 4 =
  34. 34.24 × 4 =
  35. 35.16 × 4 =
  36. 36.14 × 4 =
  37. 37.58 × 4 =
  38. 38.35 × 4 =
  39. 39.56 × 4 =
  40. 40.57 × 4 =

Answer key

  1. 36
  2. 192
  3. 128
  4. 60
  5. 44
  6. 240
  7. 152
  8. 72
  9. 28
  10. 156
  11. 176
  12. 132
  13. 212
  14. 200
  15. 108
  16. 164
  17. 116
  18. 104
  19. 168
  20. 160
  21. 24
  22. 112
  23. 144
  24. 188
  25. 148
  26. 32
  27. 196
  28. 40
  29. 84
  30. 76
  31. 216
  32. 80
  33. 52
  34. 96
  35. 64
  36. 56
  37. 232
  38. 140
  39. 224
  40. 228

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