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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 483 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.52 × 4 =
  2. 2.18 × 4 =
  3. 3.56 × 4 =
  4. 4.46 × 4 =
  5. 5.28 × 4 =
  6. 6.47 × 4 =
  7. 7.31 × 4 =
  8. 8.23 × 4 =
  9. 9.43 × 4 =
  10. 10.15 × 4 =
  11. 11.26 × 4 =
  12. 12.57 × 4 =
  13. 13.40 × 4 =
  14. 14.19 × 4 =
  15. 15.24 × 4 =
  16. 16.50 × 4 =
  17. 17.8 × 4 =
  18. 18.42 × 4 =
  19. 19.20 × 4 =
  20. 20.30 × 4 =
  21. 21.32 × 4 =
  22. 22.60 × 4 =
  23. 23.49 × 4 =
  24. 24.54 × 4 =
  25. 25.33 × 4 =
  26. 26.59 × 4 =
  27. 27.51 × 4 =
  28. 28.21 × 4 =
  29. 29.25 × 4 =
  30. 30.48 × 4 =
  31. 31.27 × 4 =
  32. 32.13 × 4 =
  33. 33.34 × 4 =
  34. 34.14 × 4 =
  35. 35.39 × 4 =
  36. 36.7 × 4 =
  37. 37.53 × 4 =
  38. 38.10 × 4 =
  39. 39.45 × 4 =
  40. 40.9 × 4 =

Answer key

  1. 208
  2. 72
  3. 224
  4. 184
  5. 112
  6. 188
  7. 124
  8. 92
  9. 172
  10. 60
  11. 104
  12. 228
  13. 160
  14. 76
  15. 96
  16. 200
  17. 32
  18. 168
  19. 80
  20. 120
  21. 128
  22. 240
  23. 196
  24. 216
  25. 132
  26. 236
  27. 204
  28. 84
  29. 100
  30. 192
  31. 108
  32. 52
  33. 136
  34. 56
  35. 156
  36. 28
  37. 212
  38. 40
  39. 180
  40. 36

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