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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 438 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.45 × 4 =
  2. 2.7 × 4 =
  3. 3.13 × 4 =
  4. 4.60 × 4 =
  5. 5.20 × 4 =
  6. 6.19 × 4 =
  7. 7.32 × 4 =
  8. 8.53 × 4 =
  9. 9.22 × 4 =
  10. 10.23 × 4 =
  11. 11.40 × 4 =
  12. 12.46 × 4 =
  13. 13.35 × 4 =
  14. 14.41 × 4 =
  15. 15.14 × 4 =
  16. 16.51 × 4 =
  17. 17.27 × 4 =
  18. 18.26 × 4 =
  19. 19.57 × 4 =
  20. 20.10 × 4 =
  21. 21.31 × 4 =
  22. 22.47 × 4 =
  23. 23.28 × 4 =
  24. 24.39 × 4 =
  25. 25.25 × 4 =
  26. 26.12 × 4 =
  27. 27.16 × 4 =
  28. 28.11 × 4 =
  29. 29.44 × 4 =
  30. 30.50 × 4 =
  31. 31.54 × 4 =
  32. 32.42 × 4 =
  33. 33.30 × 4 =
  34. 34.29 × 4 =
  35. 35.52 × 4 =
  36. 36.17 × 4 =
  37. 37.59 × 4 =
  38. 38.8 × 4 =
  39. 39.56 × 4 =
  40. 40.48 × 4 =

Answer key

  1. 180
  2. 28
  3. 52
  4. 240
  5. 80
  6. 76
  7. 128
  8. 212
  9. 88
  10. 92
  11. 160
  12. 184
  13. 140
  14. 164
  15. 56
  16. 204
  17. 108
  18. 104
  19. 228
  20. 40
  21. 124
  22. 188
  23. 112
  24. 156
  25. 100
  26. 48
  27. 64
  28. 44
  29. 176
  30. 200
  31. 216
  32. 168
  33. 120
  34. 116
  35. 208
  36. 68
  37. 236
  38. 32
  39. 224
  40. 192

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