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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 399 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.34 × 4 =
  2. 2.43 × 4 =
  3. 3.12 × 4 =
  4. 4.56 × 4 =
  5. 5.19 × 4 =
  6. 6.36 × 4 =
  7. 7.49 × 4 =
  8. 8.33 × 4 =
  9. 9.28 × 4 =
  10. 10.29 × 4 =
  11. 11.26 × 4 =
  12. 12.55 × 4 =
  13. 13.10 × 4 =
  14. 14.8 × 4 =
  15. 15.14 × 4 =
  16. 16.16 × 4 =
  17. 17.21 × 4 =
  18. 18.37 × 4 =
  19. 19.15 × 4 =
  20. 20.47 × 4 =
  21. 21.7 × 4 =
  22. 22.17 × 4 =
  23. 23.39 × 4 =
  24. 24.6 × 4 =
  25. 25.35 × 4 =
  26. 26.45 × 4 =
  27. 27.42 × 4 =
  28. 28.38 × 4 =
  29. 29.13 × 4 =
  30. 30.24 × 4 =
  31. 31.46 × 4 =
  32. 32.20 × 4 =
  33. 33.18 × 4 =
  34. 34.53 × 4 =
  35. 35.15 × 4 =
  36. 36.22 × 4 =
  37. 37.11 × 4 =
  38. 38.31 × 4 =
  39. 39.52 × 4 =
  40. 40.50 × 4 =

Answer key

  1. 136
  2. 172
  3. 48
  4. 224
  5. 76
  6. 144
  7. 196
  8. 132
  9. 112
  10. 116
  11. 104
  12. 220
  13. 40
  14. 32
  15. 56
  16. 64
  17. 84
  18. 148
  19. 60
  20. 188
  21. 28
  22. 68
  23. 156
  24. 24
  25. 140
  26. 180
  27. 168
  28. 152
  29. 52
  30. 96
  31. 184
  32. 80
  33. 72
  34. 212
  35. 60
  36. 88
  37. 44
  38. 124
  39. 208
  40. 200

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