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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 414 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.43 × 4 =
  2. 2.27 × 4 =
  3. 3.25 × 4 =
  4. 4.16 × 4 =
  5. 5.47 × 4 =
  6. 6.53 × 4 =
  7. 7.41 × 4 =
  8. 8.11 × 4 =
  9. 9.18 × 4 =
  10. 10.39 × 4 =
  11. 11.12 × 4 =
  12. 12.34 × 4 =
  13. 13.54 × 4 =
  14. 14.58 × 4 =
  15. 15.31 × 4 =
  16. 16.15 × 4 =
  17. 17.8 × 4 =
  18. 18.30 × 4 =
  19. 19.55 × 4 =
  20. 20.17 × 4 =
  21. 21.60 × 4 =
  22. 22.33 × 4 =
  23. 23.42 × 4 =
  24. 24.37 × 4 =
  25. 25.32 × 4 =
  26. 26.50 × 4 =
  27. 27.19 × 4 =
  28. 28.20 × 4 =
  29. 29.26 × 4 =
  30. 30.10 × 4 =
  31. 31.7 × 4 =
  32. 32.45 × 4 =
  33. 33.57 × 4 =
  34. 34.21 × 4 =
  35. 35.29 × 4 =
  36. 36.36 × 4 =
  37. 37.14 × 4 =
  38. 38.9 × 4 =
  39. 39.59 × 4 =
  40. 40.13 × 4 =

Answer key

  1. 172
  2. 108
  3. 100
  4. 64
  5. 188
  6. 212
  7. 164
  8. 44
  9. 72
  10. 156
  11. 48
  12. 136
  13. 216
  14. 232
  15. 124
  16. 60
  17. 32
  18. 120
  19. 220
  20. 68
  21. 240
  22. 132
  23. 168
  24. 148
  25. 128
  26. 200
  27. 76
  28. 80
  29. 104
  30. 40
  31. 28
  32. 180
  33. 228
  34. 84
  35. 116
  36. 144
  37. 56
  38. 36
  39. 236
  40. 52

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