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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 317 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.57 × 4 =
  2. 2.33 × 4 =
  3. 3.51 × 4 =
  4. 4.25 × 4 =
  5. 5.48 × 4 =
  6. 6.42 × 4 =
  7. 7.36 × 4 =
  8. 8.17 × 4 =
  9. 9.34 × 4 =
  10. 10.53 × 4 =
  11. 11.43 × 4 =
  12. 12.21 × 4 =
  13. 13.47 × 4 =
  14. 14.27 × 4 =
  15. 15.30 × 4 =
  16. 16.50 × 4 =
  17. 17.13 × 4 =
  18. 18.22 × 4 =
  19. 19.14 × 4 =
  20. 20.44 × 4 =
  21. 21.26 × 4 =
  22. 22.11 × 4 =
  23. 23.9 × 4 =
  24. 24.19 × 4 =
  25. 25.59 × 4 =
  26. 26.6 × 4 =
  27. 27.37 × 4 =
  28. 28.24 × 4 =
  29. 29.60 × 4 =
  30. 30.52 × 4 =
  31. 31.56 × 4 =
  32. 32.10 × 4 =
  33. 33.38 × 4 =
  34. 34.18 × 4 =
  35. 35.55 × 4 =
  36. 36.35 × 4 =
  37. 37.54 × 4 =
  38. 38.46 × 4 =
  39. 39.8 × 4 =
  40. 40.16 × 4 =

Answer key

  1. 228
  2. 132
  3. 204
  4. 100
  5. 192
  6. 168
  7. 144
  8. 68
  9. 136
  10. 212
  11. 172
  12. 84
  13. 188
  14. 108
  15. 120
  16. 200
  17. 52
  18. 88
  19. 56
  20. 176
  21. 104
  22. 44
  23. 36
  24. 76
  25. 236
  26. 24
  27. 148
  28. 96
  29. 240
  30. 208
  31. 224
  32. 40
  33. 152
  34. 72
  35. 220
  36. 140
  37. 216
  38. 184
  39. 32
  40. 64

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