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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 511 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.7 × 4 =
  2. 2.28 × 4 =
  3. 3.25 × 4 =
  4. 4.33 × 4 =
  5. 5.51 × 4 =
  6. 6.11 × 4 =
  7. 7.46 × 4 =
  8. 8.50 × 4 =
  9. 9.55 × 4 =
  10. 10.16 × 4 =
  11. 11.20 × 4 =
  12. 12.37 × 4 =
  13. 13.12 × 4 =
  14. 14.42 × 4 =
  15. 15.9 × 4 =
  16. 16.39 × 4 =
  17. 17.32 × 4 =
  18. 18.41 × 4 =
  19. 19.27 × 4 =
  20. 20.54 × 4 =
  21. 21.58 × 4 =
  22. 22.56 × 4 =
  23. 23.14 × 4 =
  24. 24.48 × 4 =
  25. 25.45 × 4 =
  26. 26.10 × 4 =
  27. 27.60 × 4 =
  28. 28.22 × 4 =
  29. 29.21 × 4 =
  30. 30.47 × 4 =
  31. 31.36 × 4 =
  32. 32.52 × 4 =
  33. 33.34 × 4 =
  34. 34.13 × 4 =
  35. 35.18 × 4 =
  36. 36.49 × 4 =
  37. 37.23 × 4 =
  38. 38.6 × 4 =
  39. 39.38 × 4 =
  40. 40.15 × 4 =

Answer key

  1. 28
  2. 112
  3. 100
  4. 132
  5. 204
  6. 44
  7. 184
  8. 200
  9. 220
  10. 64
  11. 80
  12. 148
  13. 48
  14. 168
  15. 36
  16. 156
  17. 128
  18. 164
  19. 108
  20. 216
  21. 232
  22. 224
  23. 56
  24. 192
  25. 180
  26. 40
  27. 240
  28. 88
  29. 84
  30. 188
  31. 144
  32. 208
  33. 136
  34. 52
  35. 72
  36. 196
  37. 92
  38. 24
  39. 152
  40. 60

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