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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 241 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.55 × 4 =
  2. 2.43 × 4 =
  3. 3.14 × 4 =
  4. 4.6 × 4 =
  5. 5.10 × 4 =
  6. 6.53 × 4 =
  7. 7.42 × 4 =
  8. 8.17 × 4 =
  9. 9.19 × 4 =
  10. 10.11 × 4 =
  11. 11.31 × 4 =
  12. 12.23 × 4 =
  13. 13.16 × 4 =
  14. 14.28 × 4 =
  15. 15.25 × 4 =
  16. 16.46 × 4 =
  17. 17.44 × 4 =
  18. 18.12 × 4 =
  19. 19.41 × 4 =
  20. 20.54 × 4 =
  21. 21.48 × 4 =
  22. 22.18 × 4 =
  23. 23.30 × 4 =
  24. 24.50 × 4 =
  25. 25.58 × 4 =
  26. 26.13 × 4 =
  27. 27.22 × 4 =
  28. 28.39 × 4 =
  29. 29.60 × 4 =
  30. 30.24 × 4 =
  31. 31.52 × 4 =
  32. 32.49 × 4 =
  33. 33.34 × 4 =
  34. 34.20 × 4 =
  35. 35.35 × 4 =
  36. 36.45 × 4 =
  37. 37.8 × 4 =
  38. 38.33 × 4 =
  39. 39.7 × 4 =
  40. 40.29 × 4 =

Answer key

  1. 220
  2. 172
  3. 56
  4. 24
  5. 40
  6. 212
  7. 168
  8. 68
  9. 76
  10. 44
  11. 124
  12. 92
  13. 64
  14. 112
  15. 100
  16. 184
  17. 176
  18. 48
  19. 164
  20. 216
  21. 192
  22. 72
  23. 120
  24. 200
  25. 232
  26. 52
  27. 88
  28. 156
  29. 240
  30. 96
  31. 208
  32. 196
  33. 136
  34. 80
  35. 140
  36. 180
  37. 32
  38. 132
  39. 28
  40. 116

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