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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 349 · 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. 2.9 × 4 =
  3. 3.7 × 4 =
  4. 4.32 × 4 =
  5. 5.47 × 4 =
  6. 6.21 × 4 =
  7. 7.36 × 4 =
  8. 8.11 × 4 =
  9. 9.8 × 4 =
  10. 10.16 × 4 =
  11. 11.37 × 4 =
  12. 12.43 × 4 =
  13. 13.14 × 4 =
  14. 14.12 × 4 =
  15. 15.39 × 4 =
  16. 16.54 × 4 =
  17. 17.52 × 4 =
  18. 18.59 × 4 =
  19. 19.55 × 4 =
  20. 20.23 × 4 =
  21. 21.15 × 4 =
  22. 22.24 × 4 =
  23. 23.19 × 4 =
  24. 24.18 × 4 =
  25. 25.13 × 4 =
  26. 26.28 × 4 =
  27. 27.35 × 4 =
  28. 28.31 × 4 =
  29. 29.44 × 4 =
  30. 30.34 × 4 =
  31. 31.17 × 4 =
  32. 32.50 × 4 =
  33. 33.25 × 4 =
  34. 34.6 × 4 =
  35. 35.29 × 4 =
  36. 36.26 × 4 =
  37. 37.41 × 4 =
  38. 38.56 × 4 =
  39. 39.46 × 4 =
  40. 40.10 × 4 =

Answer key

  1. 240
  2. 36
  3. 28
  4. 128
  5. 188
  6. 84
  7. 144
  8. 44
  9. 32
  10. 64
  11. 148
  12. 172
  13. 56
  14. 48
  15. 156
  16. 216
  17. 208
  18. 236
  19. 220
  20. 92
  21. 60
  22. 96
  23. 76
  24. 72
  25. 52
  26. 112
  27. 140
  28. 124
  29. 176
  30. 136
  31. 68
  32. 200
  33. 100
  34. 24
  35. 116
  36. 104
  37. 164
  38. 224
  39. 184
  40. 40

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