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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 447 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.22 × 4 =
  2. 2.24 × 4 =
  3. 3.37 × 4 =
  4. 4.40 × 4 =
  5. 5.48 × 4 =
  6. 6.8 × 4 =
  7. 7.26 × 4 =
  8. 8.32 × 4 =
  9. 9.39 × 4 =
  10. 10.6 × 4 =
  11. 11.53 × 4 =
  12. 12.25 × 4 =
  13. 13.50 × 4 =
  14. 14.35 × 4 =
  15. 15.12 × 4 =
  16. 16.59 × 4 =
  17. 17.51 × 4 =
  18. 18.21 × 4 =
  19. 19.16 × 4 =
  20. 20.44 × 4 =
  21. 21.45 × 4 =
  22. 22.52 × 4 =
  23. 23.36 × 4 =
  24. 24.9 × 4 =
  25. 25.30 × 4 =
  26. 26.19 × 4 =
  27. 27.23 × 4 =
  28. 28.13 × 4 =
  29. 29.54 × 4 =
  30. 30.28 × 4 =
  31. 31.18 × 4 =
  32. 32.15 × 4 =
  33. 33.46 × 4 =
  34. 34.27 × 4 =
  35. 35.10 × 4 =
  36. 36.43 × 4 =
  37. 37.42 × 4 =
  38. 38.57 × 4 =
  39. 39.17 × 4 =
  40. 40.11 × 4 =

Answer key

  1. 88
  2. 96
  3. 148
  4. 160
  5. 192
  6. 32
  7. 104
  8. 128
  9. 156
  10. 24
  11. 212
  12. 100
  13. 200
  14. 140
  15. 48
  16. 236
  17. 204
  18. 84
  19. 64
  20. 176
  21. 180
  22. 208
  23. 144
  24. 36
  25. 120
  26. 76
  27. 92
  28. 52
  29. 216
  30. 112
  31. 72
  32. 60
  33. 184
  34. 108
  35. 40
  36. 172
  37. 168
  38. 228
  39. 68
  40. 44

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