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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 503 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.9 × 4 =
  2. 2.13 × 4 =
  3. 3.17 × 4 =
  4. 4.18 × 4 =
  5. 5.48 × 4 =
  6. 6.6 × 4 =
  7. 7.19 × 4 =
  8. 8.14 × 4 =
  9. 9.7 × 4 =
  10. 10.23 × 4 =
  11. 11.40 × 4 =
  12. 12.44 × 4 =
  13. 13.21 × 4 =
  14. 14.8 × 4 =
  15. 15.41 × 4 =
  16. 16.12 × 4 =
  17. 17.29 × 4 =
  18. 18.53 × 4 =
  19. 19.15 × 4 =
  20. 20.30 × 4 =
  21. 21.16 × 4 =
  22. 22.49 × 4 =
  23. 23.35 × 4 =
  24. 24.47 × 4 =
  25. 25.10 × 4 =
  26. 26.20 × 4 =
  27. 27.46 × 4 =
  28. 28.22 × 4 =
  29. 29.24 × 4 =
  30. 30.39 × 4 =
  31. 31.45 × 4 =
  32. 32.32 × 4 =
  33. 33.28 × 4 =
  34. 34.56 × 4 =
  35. 35.57 × 4 =
  36. 36.36 × 4 =
  37. 37.54 × 4 =
  38. 38.34 × 4 =
  39. 39.58 × 4 =
  40. 40.42 × 4 =

Answer key

  1. 36
  2. 52
  3. 68
  4. 72
  5. 192
  6. 24
  7. 76
  8. 56
  9. 28
  10. 92
  11. 160
  12. 176
  13. 84
  14. 32
  15. 164
  16. 48
  17. 116
  18. 212
  19. 60
  20. 120
  21. 64
  22. 196
  23. 140
  24. 188
  25. 40
  26. 80
  27. 184
  28. 88
  29. 96
  30. 156
  31. 180
  32. 128
  33. 112
  34. 224
  35. 228
  36. 144
  37. 216
  38. 136
  39. 232
  40. 168

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