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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 137 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.56 × 4 =
  2. 2.12 × 4 =
  3. 3.7 × 4 =
  4. 4.8 × 4 =
  5. 5.30 × 4 =
  6. 6.6 × 4 =
  7. 7.43 × 4 =
  8. 8.59 × 4 =
  9. 9.28 × 4 =
  10. 10.22 × 4 =
  11. 11.47 × 4 =
  12. 12.33 × 4 =
  13. 13.19 × 4 =
  14. 14.36 × 4 =
  15. 15.16 × 4 =
  16. 16.29 × 4 =
  17. 17.51 × 4 =
  18. 18.9 × 4 =
  19. 19.45 × 4 =
  20. 20.53 × 4 =
  21. 21.31 × 4 =
  22. 22.38 × 4 =
  23. 23.44 × 4 =
  24. 24.32 × 4 =
  25. 25.57 × 4 =
  26. 26.40 × 4 =
  27. 27.25 × 4 =
  28. 28.14 × 4 =
  29. 29.26 × 4 =
  30. 30.54 × 4 =
  31. 31.13 × 4 =
  32. 32.20 × 4 =
  33. 33.52 × 4 =
  34. 34.37 × 4 =
  35. 35.55 × 4 =
  36. 36.18 × 4 =
  37. 37.42 × 4 =
  38. 38.24 × 4 =
  39. 39.41 × 4 =
  40. 40.11 × 4 =

Answer key

  1. 224
  2. 48
  3. 28
  4. 32
  5. 120
  6. 24
  7. 172
  8. 236
  9. 112
  10. 88
  11. 188
  12. 132
  13. 76
  14. 144
  15. 64
  16. 116
  17. 204
  18. 36
  19. 180
  20. 212
  21. 124
  22. 152
  23. 176
  24. 128
  25. 228
  26. 160
  27. 100
  28. 56
  29. 104
  30. 216
  31. 52
  32. 80
  33. 208
  34. 148
  35. 220
  36. 72
  37. 168
  38. 96
  39. 164
  40. 44

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