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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 214 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.60 × 4 =
  2. 2.23 × 4 =
  3. 3.10 × 4 =
  4. 4.28 × 4 =
  5. 5.9 × 4 =
  6. 6.19 × 4 =
  7. 7.52 × 4 =
  8. 8.48 × 4 =
  9. 9.54 × 4 =
  10. 10.53 × 4 =
  11. 11.56 × 4 =
  12. 12.57 × 4 =
  13. 13.41 × 4 =
  14. 14.13 × 4 =
  15. 15.31 × 4 =
  16. 16.15 × 4 =
  17. 17.25 × 4 =
  18. 18.36 × 4 =
  19. 19.55 × 4 =
  20. 20.38 × 4 =
  21. 21.27 × 4 =
  22. 22.24 × 4 =
  23. 23.12 × 4 =
  24. 24.37 × 4 =
  25. 25.17 × 4 =
  26. 26.43 × 4 =
  27. 27.26 × 4 =
  28. 28.29 × 4 =
  29. 29.50 × 4 =
  30. 30.7 × 4 =
  31. 31.8 × 4 =
  32. 32.32 × 4 =
  33. 33.11 × 4 =
  34. 34.42 × 4 =
  35. 35.39 × 4 =
  36. 36.49 × 4 =
  37. 37.20 × 4 =
  38. 38.18 × 4 =
  39. 39.22 × 4 =
  40. 40.47 × 4 =

Answer key

  1. 240
  2. 92
  3. 40
  4. 112
  5. 36
  6. 76
  7. 208
  8. 192
  9. 216
  10. 212
  11. 224
  12. 228
  13. 164
  14. 52
  15. 124
  16. 60
  17. 100
  18. 144
  19. 220
  20. 152
  21. 108
  22. 96
  23. 48
  24. 148
  25. 68
  26. 172
  27. 104
  28. 116
  29. 200
  30. 28
  31. 32
  32. 128
  33. 44
  34. 168
  35. 156
  36. 196
  37. 80
  38. 72
  39. 88
  40. 188

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