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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 914 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.28 × 4 =
  2. 2.52 × 4 =
  3. 3.57 × 4 =
  4. 4.14 × 4 =
  5. 5.12 × 4 =
  6. 6.49 × 4 =
  7. 7.48 × 4 =
  8. 8.13 × 4 =
  9. 9.6 × 4 =
  10. 10.45 × 4 =
  11. 11.42 × 4 =
  12. 12.35 × 4 =
  13. 13.58 × 4 =
  14. 14.37 × 4 =
  15. 15.26 × 4 =
  16. 16.9 × 4 =
  17. 17.10 × 4 =
  18. 18.53 × 4 =
  19. 19.51 × 4 =
  20. 20.30 × 4 =
  21. 21.22 × 4 =
  22. 22.31 × 4 =
  23. 23.21 × 4 =
  24. 24.16 × 4 =
  25. 25.46 × 4 =
  26. 26.11 × 4 =
  27. 27.59 × 4 =
  28. 28.55 × 4 =
  29. 29.47 × 4 =
  30. 30.15 × 4 =
  31. 31.17 × 4 =
  32. 32.8 × 4 =
  33. 33.20 × 4 =
  34. 34.19 × 4 =
  35. 35.24 × 4 =
  36. 36.40 × 4 =
  37. 37.33 × 4 =
  38. 38.60 × 4 =
  39. 39.29 × 4 =
  40. 40.7 × 4 =

Answer key

  1. 112
  2. 208
  3. 228
  4. 56
  5. 48
  6. 196
  7. 192
  8. 52
  9. 24
  10. 180
  11. 168
  12. 140
  13. 232
  14. 148
  15. 104
  16. 36
  17. 40
  18. 212
  19. 204
  20. 120
  21. 88
  22. 124
  23. 84
  24. 64
  25. 184
  26. 44
  27. 236
  28. 220
  29. 188
  30. 60
  31. 68
  32. 32
  33. 80
  34. 76
  35. 96
  36. 160
  37. 132
  38. 240
  39. 116
  40. 28

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