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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 802 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.16 × 4 =
  2. 2.27 × 4 =
  3. 3.56 × 4 =
  4. 4.17 × 4 =
  5. 5.19 × 4 =
  6. 6.43 × 4 =
  7. 7.12 × 4 =
  8. 8.23 × 4 =
  9. 9.47 × 4 =
  10. 10.39 × 4 =
  11. 11.50 × 4 =
  12. 12.53 × 4 =
  13. 13.44 × 4 =
  14. 14.24 × 4 =
  15. 15.45 × 4 =
  16. 16.35 × 4 =
  17. 17.20 × 4 =
  18. 18.48 × 4 =
  19. 19.28 × 4 =
  20. 20.51 × 4 =
  21. 21.37 × 4 =
  22. 22.21 × 4 =
  23. 23.7 × 4 =
  24. 24.41 × 4 =
  25. 25.25 × 4 =
  26. 26.11 × 4 =
  27. 27.46 × 4 =
  28. 28.18 × 4 =
  29. 29.30 × 4 =
  30. 30.9 × 4 =
  31. 31.15 × 4 =
  32. 32.10 × 4 =
  33. 33.59 × 4 =
  34. 34.14 × 4 =
  35. 35.8 × 4 =
  36. 36.55 × 4 =
  37. 37.54 × 4 =
  38. 38.58 × 4 =
  39. 39.33 × 4 =
  40. 40.22 × 4 =

Answer key

  1. 64
  2. 108
  3. 224
  4. 68
  5. 76
  6. 172
  7. 48
  8. 92
  9. 188
  10. 156
  11. 200
  12. 212
  13. 176
  14. 96
  15. 180
  16. 140
  17. 80
  18. 192
  19. 112
  20. 204
  21. 148
  22. 84
  23. 28
  24. 164
  25. 100
  26. 44
  27. 184
  28. 72
  29. 120
  30. 36
  31. 60
  32. 40
  33. 236
  34. 56
  35. 32
  36. 220
  37. 216
  38. 232
  39. 132
  40. 88

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