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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 449 · 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. 2.53 × 4 =
  3. 3.18 × 4 =
  4. 4.45 × 4 =
  5. 5.15 × 4 =
  6. 6.56 × 4 =
  7. 7.26 × 4 =
  8. 8.24 × 4 =
  9. 9.43 × 4 =
  10. 10.48 × 4 =
  11. 11.30 × 4 =
  12. 12.59 × 4 =
  13. 13.21 × 4 =
  14. 14.42 × 4 =
  15. 15.16 × 4 =
  16. 16.36 × 4 =
  17. 17.9 × 4 =
  18. 18.34 × 4 =
  19. 19.46 × 4 =
  20. 20.47 × 4 =
  21. 21.19 × 4 =
  22. 22.44 × 4 =
  23. 23.60 × 4 =
  24. 24.12 × 4 =
  25. 25.23 × 4 =
  26. 26.6 × 4 =
  27. 27.27 × 4 =
  28. 28.11 × 4 =
  29. 29.20 × 4 =
  30. 30.25 × 4 =
  31. 31.33 × 4 =
  32. 32.54 × 4 =
  33. 33.14 × 4 =
  34. 34.13 × 4 =
  35. 35.37 × 4 =
  36. 36.50 × 4 =
  37. 37.41 × 4 =
  38. 38.10 × 4 =
  39. 39.22 × 4 =
  40. 40.35 × 4 =

Answer key

  1. 28
  2. 212
  3. 72
  4. 180
  5. 60
  6. 224
  7. 104
  8. 96
  9. 172
  10. 192
  11. 120
  12. 236
  13. 84
  14. 168
  15. 64
  16. 144
  17. 36
  18. 136
  19. 184
  20. 188
  21. 76
  22. 176
  23. 240
  24. 48
  25. 92
  26. 24
  27. 108
  28. 44
  29. 80
  30. 100
  31. 132
  32. 216
  33. 56
  34. 52
  35. 148
  36. 200
  37. 164
  38. 40
  39. 88
  40. 140

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