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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 116 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.21 × 4 =
  2. 2.31 × 4 =
  3. 3.11 × 4 =
  4. 4.20 × 4 =
  5. 5.26 × 4 =
  6. 6.19 × 4 =
  7. 7.16 × 4 =
  8. 8.33 × 4 =
  9. 9.48 × 4 =
  10. 10.8 × 4 =
  11. 11.57 × 4 =
  12. 12.35 × 4 =
  13. 13.39 × 4 =
  14. 14.60 × 4 =
  15. 15.44 × 4 =
  16. 16.17 × 4 =
  17. 17.51 × 4 =
  18. 18.50 × 4 =
  19. 19.41 × 4 =
  20. 20.10 × 4 =
  21. 21.59 × 4 =
  22. 22.25 × 4 =
  23. 23.9 × 4 =
  24. 24.24 × 4 =
  25. 25.15 × 4 =
  26. 26.38 × 4 =
  27. 27.28 × 4 =
  28. 28.45 × 4 =
  29. 29.14 × 4 =
  30. 30.34 × 4 =
  31. 31.52 × 4 =
  32. 32.12 × 4 =
  33. 33.56 × 4 =
  34. 34.22 × 4 =
  35. 35.53 × 4 =
  36. 36.7 × 4 =
  37. 37.23 × 4 =
  38. 38.54 × 4 =
  39. 39.40 × 4 =
  40. 40.58 × 4 =

Answer key

  1. 84
  2. 124
  3. 44
  4. 80
  5. 104
  6. 76
  7. 64
  8. 132
  9. 192
  10. 32
  11. 228
  12. 140
  13. 156
  14. 240
  15. 176
  16. 68
  17. 204
  18. 200
  19. 164
  20. 40
  21. 236
  22. 100
  23. 36
  24. 96
  25. 60
  26. 152
  27. 112
  28. 180
  29. 56
  30. 136
  31. 208
  32. 48
  33. 224
  34. 88
  35. 212
  36. 28
  37. 92
  38. 216
  39. 160
  40. 232

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