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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 888 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.39 × 4 =
  2. 2.13 × 4 =
  3. 3.7 × 4 =
  4. 4.58 × 4 =
  5. 5.50 × 4 =
  6. 6.45 × 4 =
  7. 7.33 × 4 =
  8. 8.37 × 4 =
  9. 9.11 × 4 =
  10. 10.16 × 4 =
  11. 11.36 × 4 =
  12. 12.9 × 4 =
  13. 13.25 × 4 =
  14. 14.14 × 4 =
  15. 15.57 × 4 =
  16. 16.42 × 4 =
  17. 17.34 × 4 =
  18. 18.28 × 4 =
  19. 19.26 × 4 =
  20. 20.29 × 4 =
  21. 21.44 × 4 =
  22. 22.24 × 4 =
  23. 23.35 × 4 =
  24. 24.31 × 4 =
  25. 25.41 × 4 =
  26. 26.18 × 4 =
  27. 27.51 × 4 =
  28. 28.19 × 4 =
  29. 29.47 × 4 =
  30. 30.53 × 4 =
  31. 31.32 × 4 =
  32. 32.59 × 4 =
  33. 33.55 × 4 =
  34. 34.43 × 4 =
  35. 35.30 × 4 =
  36. 36.38 × 4 =
  37. 37.48 × 4 =
  38. 38.20 × 4 =
  39. 39.8 × 4 =
  40. 40.6 × 4 =

Answer key

  1. 156
  2. 52
  3. 28
  4. 232
  5. 200
  6. 180
  7. 132
  8. 148
  9. 44
  10. 64
  11. 144
  12. 36
  13. 100
  14. 56
  15. 228
  16. 168
  17. 136
  18. 112
  19. 104
  20. 116
  21. 176
  22. 96
  23. 140
  24. 124
  25. 164
  26. 72
  27. 204
  28. 76
  29. 188
  30. 212
  31. 128
  32. 236
  33. 220
  34. 172
  35. 120
  36. 152
  37. 192
  38. 80
  39. 32
  40. 24

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