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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 329 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.53 × 4 =
  2. 2.29 × 4 =
  3. 3.11 × 4 =
  4. 4.18 × 4 =
  5. 5.34 × 4 =
  6. 6.54 × 4 =
  7. 7.49 × 4 =
  8. 8.25 × 4 =
  9. 9.59 × 4 =
  10. 10.8 × 4 =
  11. 11.36 × 4 =
  12. 12.58 × 4 =
  13. 13.14 × 4 =
  14. 14.55 × 4 =
  15. 15.40 × 4 =
  16. 16.22 × 4 =
  17. 17.51 × 4 =
  18. 18.23 × 4 =
  19. 19.9 × 4 =
  20. 20.48 × 4 =
  21. 21.20 × 4 =
  22. 22.38 × 4 =
  23. 23.19 × 4 =
  24. 24.21 × 4 =
  25. 25.56 × 4 =
  26. 26.10 × 4 =
  27. 27.7 × 4 =
  28. 28.6 × 4 =
  29. 29.44 × 4 =
  30. 30.27 × 4 =
  31. 31.39 × 4 =
  32. 32.16 × 4 =
  33. 33.45 × 4 =
  34. 34.42 × 4 =
  35. 35.17 × 4 =
  36. 36.13 × 4 =
  37. 37.31 × 4 =
  38. 38.50 × 4 =
  39. 39.24 × 4 =
  40. 40.57 × 4 =

Answer key

  1. 212
  2. 116
  3. 44
  4. 72
  5. 136
  6. 216
  7. 196
  8. 100
  9. 236
  10. 32
  11. 144
  12. 232
  13. 56
  14. 220
  15. 160
  16. 88
  17. 204
  18. 92
  19. 36
  20. 192
  21. 80
  22. 152
  23. 76
  24. 84
  25. 224
  26. 40
  27. 28
  28. 24
  29. 176
  30. 108
  31. 156
  32. 64
  33. 180
  34. 168
  35. 68
  36. 52
  37. 124
  38. 200
  39. 96
  40. 228

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