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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 138 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.41 × 4 =
  2. 2.27 × 4 =
  3. 3.44 × 4 =
  4. 4.48 × 4 =
  5. 5.14 × 4 =
  6. 6.31 × 4 =
  7. 7.9 × 4 =
  8. 8.45 × 4 =
  9. 9.60 × 4 =
  10. 10.13 × 4 =
  11. 11.29 × 4 =
  12. 12.21 × 4 =
  13. 13.54 × 4 =
  14. 14.36 × 4 =
  15. 15.16 × 4 =
  16. 16.52 × 4 =
  17. 17.53 × 4 =
  18. 18.50 × 4 =
  19. 19.34 × 4 =
  20. 20.19 × 4 =
  21. 21.51 × 4 =
  22. 22.6 × 4 =
  23. 23.59 × 4 =
  24. 24.55 × 4 =
  25. 25.33 × 4 =
  26. 26.42 × 4 =
  27. 27.46 × 4 =
  28. 28.56 × 4 =
  29. 29.17 × 4 =
  30. 30.38 × 4 =
  31. 31.26 × 4 =
  32. 32.10 × 4 =
  33. 33.30 × 4 =
  34. 34.57 × 4 =
  35. 35.7 × 4 =
  36. 36.28 × 4 =
  37. 37.11 × 4 =
  38. 38.8 × 4 =
  39. 39.20 × 4 =
  40. 40.14 × 4 =

Answer key

  1. 164
  2. 108
  3. 176
  4. 192
  5. 56
  6. 124
  7. 36
  8. 180
  9. 240
  10. 52
  11. 116
  12. 84
  13. 216
  14. 144
  15. 64
  16. 208
  17. 212
  18. 200
  19. 136
  20. 76
  21. 204
  22. 24
  23. 236
  24. 220
  25. 132
  26. 168
  27. 184
  28. 224
  29. 68
  30. 152
  31. 104
  32. 40
  33. 120
  34. 228
  35. 28
  36. 112
  37. 44
  38. 32
  39. 80
  40. 56

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