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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 64 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.18 × 4 =
  2. 2.35 × 4 =
  3. 3.21 × 4 =
  4. 4.27 × 4 =
  5. 5.50 × 4 =
  6. 6.37 × 4 =
  7. 7.28 × 4 =
  8. 8.40 × 4 =
  9. 9.53 × 4 =
  10. 10.48 × 4 =
  11. 11.49 × 4 =
  12. 12.15 × 4 =
  13. 13.24 × 4 =
  14. 14.45 × 4 =
  15. 15.20 × 4 =
  16. 16.14 × 4 =
  17. 17.22 × 4 =
  18. 18.6 × 4 =
  19. 19.23 × 4 =
  20. 20.7 × 4 =
  21. 21.54 × 4 =
  22. 22.32 × 4 =
  23. 23.25 × 4 =
  24. 24.30 × 4 =
  25. 25.19 × 4 =
  26. 26.51 × 4 =
  27. 27.47 × 4 =
  28. 28.34 × 4 =
  29. 29.58 × 4 =
  30. 30.12 × 4 =
  31. 31.36 × 4 =
  32. 32.60 × 4 =
  33. 33.16 × 4 =
  34. 34.42 × 4 =
  35. 35.38 × 4 =
  36. 36.9 × 4 =
  37. 37.52 × 4 =
  38. 38.8 × 4 =
  39. 39.56 × 4 =
  40. 40.29 × 4 =

Answer key

  1. 72
  2. 140
  3. 84
  4. 108
  5. 200
  6. 148
  7. 112
  8. 160
  9. 212
  10. 192
  11. 196
  12. 60
  13. 96
  14. 180
  15. 80
  16. 56
  17. 88
  18. 24
  19. 92
  20. 28
  21. 216
  22. 128
  23. 100
  24. 120
  25. 76
  26. 204
  27. 188
  28. 136
  29. 232
  30. 48
  31. 144
  32. 240
  33. 64
  34. 168
  35. 152
  36. 36
  37. 208
  38. 32
  39. 224
  40. 116

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