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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 239 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.55 × 4 =
  2. 2.13 × 4 =
  3. 3.49 × 4 =
  4. 4.36 × 4 =
  5. 5.19 × 4 =
  6. 6.10 × 4 =
  7. 7.20 × 4 =
  8. 8.43 × 4 =
  9. 9.38 × 4 =
  10. 10.42 × 4 =
  11. 11.18 × 4 =
  12. 12.44 × 4 =
  13. 13.21 × 4 =
  14. 14.48 × 4 =
  15. 15.32 × 4 =
  16. 16.17 × 4 =
  17. 17.37 × 4 =
  18. 18.41 × 4 =
  19. 19.31 × 4 =
  20. 20.59 × 4 =
  21. 21.24 × 4 =
  22. 22.29 × 4 =
  23. 23.45 × 4 =
  24. 24.33 × 4 =
  25. 25.46 × 4 =
  26. 26.26 × 4 =
  27. 27.60 × 4 =
  28. 28.52 × 4 =
  29. 29.47 × 4 =
  30. 30.25 × 4 =
  31. 31.40 × 4 =
  32. 32.23 × 4 =
  33. 33.15 × 4 =
  34. 34.14 × 4 =
  35. 35.11 × 4 =
  36. 36.6 × 4 =
  37. 37.30 × 4 =
  38. 38.22 × 4 =
  39. 39.50 × 4 =
  40. 40.8 × 4 =

Answer key

  1. 220
  2. 52
  3. 196
  4. 144
  5. 76
  6. 40
  7. 80
  8. 172
  9. 152
  10. 168
  11. 72
  12. 176
  13. 84
  14. 192
  15. 128
  16. 68
  17. 148
  18. 164
  19. 124
  20. 236
  21. 96
  22. 116
  23. 180
  24. 132
  25. 184
  26. 104
  27. 240
  28. 208
  29. 188
  30. 100
  31. 160
  32. 92
  33. 60
  34. 56
  35. 44
  36. 24
  37. 120
  38. 88
  39. 200
  40. 32

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