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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 11 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.41 × 4 =
  2. 2.22 × 4 =
  3. 3.8 × 4 =
  4. 4.47 × 4 =
  5. 5.15 × 4 =
  6. 6.16 × 4 =
  7. 7.20 × 4 =
  8. 8.26 × 4 =
  9. 9.57 × 4 =
  10. 10.23 × 4 =
  11. 11.24 × 4 =
  12. 12.18 × 4 =
  13. 13.29 × 4 =
  14. 14.53 × 4 =
  15. 15.52 × 4 =
  16. 16.46 × 4 =
  17. 17.35 × 4 =
  18. 18.50 × 4 =
  19. 19.38 × 4 =
  20. 20.36 × 4 =
  21. 21.21 × 4 =
  22. 22.32 × 4 =
  23. 23.11 × 4 =
  24. 24.19 × 4 =
  25. 25.14 × 4 =
  26. 26.60 × 4 =
  27. 27.37 × 4 =
  28. 28.44 × 4 =
  29. 29.39 × 4 =
  30. 30.40 × 4 =
  31. 31.7 × 4 =
  32. 32.12 × 4 =
  33. 33.42 × 4 =
  34. 34.54 × 4 =
  35. 35.6 × 4 =
  36. 36.13 × 4 =
  37. 37.56 × 4 =
  38. 38.27 × 4 =
  39. 39.17 × 4 =
  40. 40.9 × 4 =

Answer key

  1. 164
  2. 88
  3. 32
  4. 188
  5. 60
  6. 64
  7. 80
  8. 104
  9. 228
  10. 92
  11. 96
  12. 72
  13. 116
  14. 212
  15. 208
  16. 184
  17. 140
  18. 200
  19. 152
  20. 144
  21. 84
  22. 128
  23. 44
  24. 76
  25. 56
  26. 240
  27. 148
  28. 176
  29. 156
  30. 160
  31. 28
  32. 48
  33. 168
  34. 216
  35. 24
  36. 52
  37. 224
  38. 108
  39. 68
  40. 36

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