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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 88 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.27 × 4 =
  2. 2.57 × 4 =
  3. 3.45 × 4 =
  4. 4.48 × 4 =
  5. 5.11 × 4 =
  6. 6.20 × 4 =
  7. 7.10 × 4 =
  8. 8.25 × 4 =
  9. 9.22 × 4 =
  10. 10.39 × 4 =
  11. 11.50 × 4 =
  12. 12.47 × 4 =
  13. 13.56 × 4 =
  14. 14.36 × 4 =
  15. 15.23 × 4 =
  16. 16.40 × 4 =
  17. 17.17 × 4 =
  18. 18.60 × 4 =
  19. 19.42 × 4 =
  20. 20.18 × 4 =
  21. 21.6 × 4 =
  22. 22.59 × 4 =
  23. 23.46 × 4 =
  24. 24.38 × 4 =
  25. 25.7 × 4 =
  26. 26.13 × 4 =
  27. 27.24 × 4 =
  28. 28.14 × 4 =
  29. 29.41 × 4 =
  30. 30.9 × 4 =
  31. 31.54 × 4 =
  32. 32.19 × 4 =
  33. 33.35 × 4 =
  34. 34.33 × 4 =
  35. 35.8 × 4 =
  36. 36.30 × 4 =
  37. 37.58 × 4 =
  38. 38.32 × 4 =
  39. 39.12 × 4 =
  40. 40.34 × 4 =

Answer key

  1. 108
  2. 228
  3. 180
  4. 192
  5. 44
  6. 80
  7. 40
  8. 100
  9. 88
  10. 156
  11. 200
  12. 188
  13. 224
  14. 144
  15. 92
  16. 160
  17. 68
  18. 240
  19. 168
  20. 72
  21. 24
  22. 236
  23. 184
  24. 152
  25. 28
  26. 52
  27. 96
  28. 56
  29. 164
  30. 36
  31. 216
  32. 76
  33. 140
  34. 132
  35. 32
  36. 120
  37. 232
  38. 128
  39. 48
  40. 136

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