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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 777 · 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. 3.38 × 4 =
  4. 4.27 × 4 =
  5. 5.59 × 4 =
  6. 6.48 × 4 =
  7. 7.26 × 4 =
  8. 8.28 × 4 =
  9. 9.33 × 4 =
  10. 10.20 × 4 =
  11. 11.43 × 4 =
  12. 12.51 × 4 =
  13. 13.49 × 4 =
  14. 14.31 × 4 =
  15. 15.21 × 4 =
  16. 16.52 × 4 =
  17. 17.8 × 4 =
  18. 18.14 × 4 =
  19. 19.23 × 4 =
  20. 20.37 × 4 =
  21. 21.9 × 4 =
  22. 22.56 × 4 =
  23. 23.46 × 4 =
  24. 24.60 × 4 =
  25. 25.22 × 4 =
  26. 26.58 × 4 =
  27. 27.57 × 4 =
  28. 28.32 × 4 =
  29. 29.18 × 4 =
  30. 30.54 × 4 =
  31. 31.17 × 4 =
  32. 32.44 × 4 =
  33. 33.35 × 4 =
  34. 34.29 × 4 =
  35. 35.15 × 4 =
  36. 36.6 × 4 =
  37. 37.50 × 4 =
  38. 38.41 × 4 =
  39. 39.36 × 4 =
  40. 40.7 × 4 =

Answer key

  1. 156
  2. 52
  3. 152
  4. 108
  5. 236
  6. 192
  7. 104
  8. 112
  9. 132
  10. 80
  11. 172
  12. 204
  13. 196
  14. 124
  15. 84
  16. 208
  17. 32
  18. 56
  19. 92
  20. 148
  21. 36
  22. 224
  23. 184
  24. 240
  25. 88
  26. 232
  27. 228
  28. 128
  29. 72
  30. 216
  31. 68
  32. 176
  33. 140
  34. 116
  35. 60
  36. 24
  37. 200
  38. 164
  39. 144
  40. 28

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