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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 567 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.21 × 4 =
  2. 2.41 × 4 =
  3. 3.6 × 4 =
  4. 4.18 × 4 =
  5. 5.30 × 4 =
  6. 6.37 × 4 =
  7. 7.32 × 4 =
  8. 8.39 × 4 =
  9. 9.11 × 4 =
  10. 10.53 × 4 =
  11. 11.49 × 4 =
  12. 12.19 × 4 =
  13. 13.20 × 4 =
  14. 14.48 × 4 =
  15. 15.29 × 4 =
  16. 16.24 × 4 =
  17. 17.10 × 4 =
  18. 18.16 × 4 =
  19. 19.42 × 4 =
  20. 20.22 × 4 =
  21. 21.13 × 4 =
  22. 22.56 × 4 =
  23. 23.36 × 4 =
  24. 24.14 × 4 =
  25. 25.34 × 4 =
  26. 26.27 × 4 =
  27. 27.47 × 4 =
  28. 28.7 × 4 =
  29. 29.23 × 4 =
  30. 30.33 × 4 =
  31. 31.59 × 4 =
  32. 32.57 × 4 =
  33. 33.60 × 4 =
  34. 34.28 × 4 =
  35. 35.8 × 4 =
  36. 36.51 × 4 =
  37. 37.44 × 4 =
  38. 38.30 × 4 =
  39. 39.38 × 4 =
  40. 40.25 × 4 =

Answer key

  1. 84
  2. 164
  3. 24
  4. 72
  5. 120
  6. 148
  7. 128
  8. 156
  9. 44
  10. 212
  11. 196
  12. 76
  13. 80
  14. 192
  15. 116
  16. 96
  17. 40
  18. 64
  19. 168
  20. 88
  21. 52
  22. 224
  23. 144
  24. 56
  25. 136
  26. 108
  27. 188
  28. 28
  29. 92
  30. 132
  31. 236
  32. 228
  33. 240
  34. 112
  35. 32
  36. 204
  37. 176
  38. 120
  39. 152
  40. 100

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