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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 232 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.42 × 4 =
  2. 2.55 × 4 =
  3. 3.50 × 4 =
  4. 4.53 × 4 =
  5. 5.47 × 4 =
  6. 6.57 × 4 =
  7. 7.31 × 4 =
  8. 8.6 × 4 =
  9. 9.18 × 4 =
  10. 10.54 × 4 =
  11. 11.10 × 4 =
  12. 12.39 × 4 =
  13. 13.44 × 4 =
  14. 14.19 × 4 =
  15. 15.16 × 4 =
  16. 16.46 × 4 =
  17. 17.20 × 4 =
  18. 18.58 × 4 =
  19. 19.25 × 4 =
  20. 20.21 × 4 =
  21. 21.36 × 4 =
  22. 22.8 × 4 =
  23. 23.11 × 4 =
  24. 24.7 × 4 =
  25. 25.26 × 4 =
  26. 26.22 × 4 =
  27. 27.34 × 4 =
  28. 28.13 × 4 =
  29. 29.35 × 4 =
  30. 30.48 × 4 =
  31. 31.60 × 4 =
  32. 32.15 × 4 =
  33. 33.30 × 4 =
  34. 34.40 × 4 =
  35. 35.33 × 4 =
  36. 36.32 × 4 =
  37. 37.17 × 4 =
  38. 38.51 × 4 =
  39. 39.52 × 4 =
  40. 40.45 × 4 =

Answer key

  1. 168
  2. 220
  3. 200
  4. 212
  5. 188
  6. 228
  7. 124
  8. 24
  9. 72
  10. 216
  11. 40
  12. 156
  13. 176
  14. 76
  15. 64
  16. 184
  17. 80
  18. 232
  19. 100
  20. 84
  21. 144
  22. 32
  23. 44
  24. 28
  25. 104
  26. 88
  27. 136
  28. 52
  29. 140
  30. 192
  31. 240
  32. 60
  33. 120
  34. 160
  35. 132
  36. 128
  37. 68
  38. 204
  39. 208
  40. 180

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