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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 226 · 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. 2.55 × 4 =
  3. 3.16 × 4 =
  4. 4.18 × 4 =
  5. 5.19 × 4 =
  6. 6.21 × 4 =
  7. 7.42 × 4 =
  8. 8.7 × 4 =
  9. 9.12 × 4 =
  10. 10.36 × 4 =
  11. 11.53 × 4 =
  12. 12.34 × 4 =
  13. 13.27 × 4 =
  14. 14.59 × 4 =
  15. 15.9 × 4 =
  16. 16.38 × 4 =
  17. 17.33 × 4 =
  18. 18.39 × 4 =
  19. 19.57 × 4 =
  20. 20.47 × 4 =
  21. 21.8 × 4 =
  22. 22.6 × 4 =
  23. 23.13 × 4 =
  24. 24.32 × 4 =
  25. 25.40 × 4 =
  26. 26.11 × 4 =
  27. 27.48 × 4 =
  28. 28.22 × 4 =
  29. 29.60 × 4 =
  30. 30.29 × 4 =
  31. 31.41 × 4 =
  32. 32.28 × 4 =
  33. 33.44 × 4 =
  34. 34.45 × 4 =
  35. 35.51 × 4 =
  36. 36.58 × 4 =
  37. 37.35 × 4 =
  38. 38.20 × 4 =
  39. 39.17 × 4 =
  40. 40.46 × 4 =

Answer key

  1. 224
  2. 220
  3. 64
  4. 72
  5. 76
  6. 84
  7. 168
  8. 28
  9. 48
  10. 144
  11. 212
  12. 136
  13. 108
  14. 236
  15. 36
  16. 152
  17. 132
  18. 156
  19. 228
  20. 188
  21. 32
  22. 24
  23. 52
  24. 128
  25. 160
  26. 44
  27. 192
  28. 88
  29. 240
  30. 116
  31. 164
  32. 112
  33. 176
  34. 180
  35. 204
  36. 232
  37. 140
  38. 80
  39. 68
  40. 184

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