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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 22 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.6 × 4 =
  2. 2.25 × 4 =
  3. 3.26 × 4 =
  4. 4.22 × 4 =
  5. 5.57 × 4 =
  6. 6.37 × 4 =
  7. 7.60 × 4 =
  8. 8.42 × 4 =
  9. 9.7 × 4 =
  10. 10.27 × 4 =
  11. 11.11 × 4 =
  12. 12.13 × 4 =
  13. 13.10 × 4 =
  14. 14.31 × 4 =
  15. 15.43 × 4 =
  16. 16.55 × 4 =
  17. 17.41 × 4 =
  18. 18.39 × 4 =
  19. 19.9 × 4 =
  20. 20.33 × 4 =
  21. 21.49 × 4 =
  22. 22.35 × 4 =
  23. 23.17 × 4 =
  24. 24.44 × 4 =
  25. 25.20 × 4 =
  26. 26.16 × 4 =
  27. 27.45 × 4 =
  28. 28.53 × 4 =
  29. 29.46 × 4 =
  30. 30.58 × 4 =
  31. 31.12 × 4 =
  32. 32.30 × 4 =
  33. 33.56 × 4 =
  34. 34.28 × 4 =
  35. 35.50 × 4 =
  36. 36.19 × 4 =
  37. 37.18 × 4 =
  38. 38.14 × 4 =
  39. 39.36 × 4 =
  40. 40.51 × 4 =

Answer key

  1. 24
  2. 100
  3. 104
  4. 88
  5. 228
  6. 148
  7. 240
  8. 168
  9. 28
  10. 108
  11. 44
  12. 52
  13. 40
  14. 124
  15. 172
  16. 220
  17. 164
  18. 156
  19. 36
  20. 132
  21. 196
  22. 140
  23. 68
  24. 176
  25. 80
  26. 64
  27. 180
  28. 212
  29. 184
  30. 232
  31. 48
  32. 120
  33. 224
  34. 112
  35. 200
  36. 76
  37. 72
  38. 56
  39. 144
  40. 204

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