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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 79 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.20 × 4 =
  2. 2.55 × 4 =
  3. 3.45 × 4 =
  4. 4.27 × 4 =
  5. 5.37 × 4 =
  6. 6.43 × 4 =
  7. 7.33 × 4 =
  8. 8.49 × 4 =
  9. 9.21 × 4 =
  10. 10.25 × 4 =
  11. 11.8 × 4 =
  12. 12.7 × 4 =
  13. 13.59 × 4 =
  14. 14.15 × 4 =
  15. 15.35 × 4 =
  16. 16.31 × 4 =
  17. 17.34 × 4 =
  18. 18.10 × 4 =
  19. 19.16 × 4 =
  20. 20.53 × 4 =
  21. 21.24 × 4 =
  22. 22.46 × 4 =
  23. 23.58 × 4 =
  24. 24.13 × 4 =
  25. 25.9 × 4 =
  26. 26.12 × 4 =
  27. 27.18 × 4 =
  28. 28.22 × 4 =
  29. 29.47 × 4 =
  30. 30.14 × 4 =
  31. 31.48 × 4 =
  32. 32.41 × 4 =
  33. 33.26 × 4 =
  34. 34.30 × 4 =
  35. 35.52 × 4 =
  36. 36.19 × 4 =
  37. 37.39 × 4 =
  38. 38.28 × 4 =
  39. 39.29 × 4 =
  40. 40.11 × 4 =

Answer key

  1. 80
  2. 220
  3. 180
  4. 108
  5. 148
  6. 172
  7. 132
  8. 196
  9. 84
  10. 100
  11. 32
  12. 28
  13. 236
  14. 60
  15. 140
  16. 124
  17. 136
  18. 40
  19. 64
  20. 212
  21. 96
  22. 184
  23. 232
  24. 52
  25. 36
  26. 48
  27. 72
  28. 88
  29. 188
  30. 56
  31. 192
  32. 164
  33. 104
  34. 120
  35. 208
  36. 76
  37. 156
  38. 112
  39. 116
  40. 44

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