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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 144 · 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. 2.28 × 4 =
  3. 3.13 × 4 =
  4. 4.35 × 4 =
  5. 5.20 × 4 =
  6. 6.10 × 4 =
  7. 7.60 × 4 =
  8. 8.21 × 4 =
  9. 9.57 × 4 =
  10. 10.39 × 4 =
  11. 11.18 × 4 =
  12. 12.22 × 4 =
  13. 13.6 × 4 =
  14. 14.11 × 4 =
  15. 15.19 × 4 =
  16. 16.32 × 4 =
  17. 17.14 × 4 =
  18. 18.8 × 4 =
  19. 19.44 × 4 =
  20. 20.54 × 4 =
  21. 21.17 × 4 =
  22. 22.34 × 4 =
  23. 23.26 × 4 =
  24. 24.31 × 4 =
  25. 25.56 × 4 =
  26. 26.7 × 4 =
  27. 27.49 × 4 =
  28. 28.33 × 4 =
  29. 29.45 × 4 =
  30. 30.43 × 4 =
  31. 31.59 × 4 =
  32. 32.41 × 4 =
  33. 33.50 × 4 =
  34. 34.48 × 4 =
  35. 35.55 × 4 =
  36. 36.24 × 4 =
  37. 37.9 × 4 =
  38. 38.15 × 4 =
  39. 39.38 × 4 =
  40. 40.30 × 4 =

Answer key

  1. 208
  2. 112
  3. 52
  4. 140
  5. 80
  6. 40
  7. 240
  8. 84
  9. 228
  10. 156
  11. 72
  12. 88
  13. 24
  14. 44
  15. 76
  16. 128
  17. 56
  18. 32
  19. 176
  20. 216
  21. 68
  22. 136
  23. 104
  24. 124
  25. 224
  26. 28
  27. 196
  28. 132
  29. 180
  30. 172
  31. 236
  32. 164
  33. 200
  34. 192
  35. 220
  36. 96
  37. 36
  38. 60
  39. 152
  40. 120

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