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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 439 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.30 × 4 =
  2. 2.7 × 4 =
  3. 3.36 × 4 =
  4. 4.11 × 4 =
  5. 5.24 × 4 =
  6. 6.51 × 4 =
  7. 7.47 × 4 =
  8. 8.58 × 4 =
  9. 9.12 × 4 =
  10. 10.28 × 4 =
  11. 11.34 × 4 =
  12. 12.40 × 4 =
  13. 13.21 × 4 =
  14. 14.37 × 4 =
  15. 15.26 × 4 =
  16. 16.60 × 4 =
  17. 17.53 × 4 =
  18. 18.54 × 4 =
  19. 19.50 × 4 =
  20. 20.14 × 4 =
  21. 21.48 × 4 =
  22. 22.33 × 4 =
  23. 23.49 × 4 =
  24. 24.10 × 4 =
  25. 25.56 × 4 =
  26. 26.17 × 4 =
  27. 27.18 × 4 =
  28. 28.27 × 4 =
  29. 29.22 × 4 =
  30. 30.52 × 4 =
  31. 31.19 × 4 =
  32. 32.25 × 4 =
  33. 33.38 × 4 =
  34. 34.16 × 4 =
  35. 35.55 × 4 =
  36. 36.9 × 4 =
  37. 37.15 × 4 =
  38. 38.42 × 4 =
  39. 39.13 × 4 =
  40. 40.20 × 4 =

Answer key

  1. 120
  2. 28
  3. 144
  4. 44
  5. 96
  6. 204
  7. 188
  8. 232
  9. 48
  10. 112
  11. 136
  12. 160
  13. 84
  14. 148
  15. 104
  16. 240
  17. 212
  18. 216
  19. 200
  20. 56
  21. 192
  22. 132
  23. 196
  24. 40
  25. 224
  26. 68
  27. 72
  28. 108
  29. 88
  30. 208
  31. 76
  32. 100
  33. 152
  34. 64
  35. 220
  36. 36
  37. 60
  38. 168
  39. 52
  40. 80

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