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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 461 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.51 × 4 =
  2. 2.11 × 4 =
  3. 3.35 × 4 =
  4. 4.20 × 4 =
  5. 5.33 × 4 =
  6. 6.46 × 4 =
  7. 7.58 × 4 =
  8. 8.26 × 4 =
  9. 9.24 × 4 =
  10. 10.53 × 4 =
  11. 11.50 × 4 =
  12. 12.45 × 4 =
  13. 13.47 × 4 =
  14. 14.13 × 4 =
  15. 15.52 × 4 =
  16. 16.17 × 4 =
  17. 17.38 × 4 =
  18. 18.37 × 4 =
  19. 19.36 × 4 =
  20. 20.39 × 4 =
  21. 21.54 × 4 =
  22. 22.9 × 4 =
  23. 23.23 × 4 =
  24. 24.41 × 4 =
  25. 25.44 × 4 =
  26. 26.60 × 4 =
  27. 27.55 × 4 =
  28. 28.32 × 4 =
  29. 29.7 × 4 =
  30. 30.29 × 4 =
  31. 31.28 × 4 =
  32. 32.30 × 4 =
  33. 33.25 × 4 =
  34. 34.49 × 4 =
  35. 35.10 × 4 =
  36. 36.8 × 4 =
  37. 37.21 × 4 =
  38. 38.19 × 4 =
  39. 39.48 × 4 =
  40. 40.14 × 4 =

Answer key

  1. 204
  2. 44
  3. 140
  4. 80
  5. 132
  6. 184
  7. 232
  8. 104
  9. 96
  10. 212
  11. 200
  12. 180
  13. 188
  14. 52
  15. 208
  16. 68
  17. 152
  18. 148
  19. 144
  20. 156
  21. 216
  22. 36
  23. 92
  24. 164
  25. 176
  26. 240
  27. 220
  28. 128
  29. 28
  30. 116
  31. 112
  32. 120
  33. 100
  34. 196
  35. 40
  36. 32
  37. 84
  38. 76
  39. 192
  40. 56

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