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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 135 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.27 × 4 =
  2. 2.11 × 4 =
  3. 3.21 × 4 =
  4. 4.15 × 4 =
  5. 5.7 × 4 =
  6. 6.36 × 4 =
  7. 7.19 × 4 =
  8. 8.9 × 4 =
  9. 9.49 × 4 =
  10. 10.28 × 4 =
  11. 11.47 × 4 =
  12. 12.40 × 4 =
  13. 13.31 × 4 =
  14. 14.14 × 4 =
  15. 15.42 × 4 =
  16. 16.41 × 4 =
  17. 17.30 × 4 =
  18. 18.48 × 4 =
  19. 19.52 × 4 =
  20. 20.23 × 4 =
  21. 21.39 × 4 =
  22. 22.34 × 4 =
  23. 23.45 × 4 =
  24. 24.12 × 4 =
  25. 25.37 × 4 =
  26. 26.10 × 4 =
  27. 27.8 × 4 =
  28. 28.56 × 4 =
  29. 29.17 × 4 =
  30. 30.18 × 4 =
  31. 31.13 × 4 =
  32. 32.57 × 4 =
  33. 33.26 × 4 =
  34. 34.38 × 4 =
  35. 35.43 × 4 =
  36. 36.16 × 4 =
  37. 37.58 × 4 =
  38. 38.51 × 4 =
  39. 39.53 × 4 =
  40. 40.20 × 4 =

Answer key

  1. 108
  2. 44
  3. 84
  4. 60
  5. 28
  6. 144
  7. 76
  8. 36
  9. 196
  10. 112
  11. 188
  12. 160
  13. 124
  14. 56
  15. 168
  16. 164
  17. 120
  18. 192
  19. 208
  20. 92
  21. 156
  22. 136
  23. 180
  24. 48
  25. 148
  26. 40
  27. 32
  28. 224
  29. 68
  30. 72
  31. 52
  32. 228
  33. 104
  34. 152
  35. 172
  36. 64
  37. 232
  38. 204
  39. 212
  40. 80

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