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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 286 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.37 × 4 =
  2. 2.51 × 4 =
  3. 3.41 × 4 =
  4. 4.59 × 4 =
  5. 5.44 × 4 =
  6. 6.48 × 4 =
  7. 7.36 × 4 =
  8. 8.56 × 4 =
  9. 9.60 × 4 =
  10. 10.21 × 4 =
  11. 11.7 × 4 =
  12. 12.9 × 4 =
  13. 13.10 × 4 =
  14. 14.32 × 4 =
  15. 15.47 × 4 =
  16. 16.55 × 4 =
  17. 17.40 × 4 =
  18. 18.57 × 4 =
  19. 19.45 × 4 =
  20. 20.22 × 4 =
  21. 21.29 × 4 =
  22. 22.23 × 4 =
  23. 23.15 × 4 =
  24. 24.26 × 4 =
  25. 25.53 × 4 =
  26. 26.19 × 4 =
  27. 27.14 × 4 =
  28. 28.11 × 4 =
  29. 29.28 × 4 =
  30. 30.25 × 4 =
  31. 31.24 × 4 =
  32. 32.35 × 4 =
  33. 33.52 × 4 =
  34. 34.12 × 4 =
  35. 35.20 × 4 =
  36. 36.39 × 4 =
  37. 37.13 × 4 =
  38. 38.8 × 4 =
  39. 39.44 × 4 =
  40. 40.27 × 4 =

Answer key

  1. 148
  2. 204
  3. 164
  4. 236
  5. 176
  6. 192
  7. 144
  8. 224
  9. 240
  10. 84
  11. 28
  12. 36
  13. 40
  14. 128
  15. 188
  16. 220
  17. 160
  18. 228
  19. 180
  20. 88
  21. 116
  22. 92
  23. 60
  24. 104
  25. 212
  26. 76
  27. 56
  28. 44
  29. 112
  30. 100
  31. 96
  32. 140
  33. 208
  34. 48
  35. 80
  36. 156
  37. 52
  38. 32
  39. 176
  40. 108

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