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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 170 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.8 × 4 =
  2. 2.10 × 4 =
  3. 3.58 × 4 =
  4. 4.57 × 4 =
  5. 5.27 × 4 =
  6. 6.20 × 4 =
  7. 7.36 × 4 =
  8. 8.21 × 4 =
  9. 9.32 × 4 =
  10. 10.43 × 4 =
  11. 11.9 × 4 =
  12. 12.51 × 4 =
  13. 13.28 × 4 =
  14. 14.49 × 4 =
  15. 15.17 × 4 =
  16. 16.40 × 4 =
  17. 17.37 × 4 =
  18. 18.13 × 4 =
  19. 19.56 × 4 =
  20. 20.15 × 4 =
  21. 21.50 × 4 =
  22. 22.31 × 4 =
  23. 23.19 × 4 =
  24. 24.42 × 4 =
  25. 25.54 × 4 =
  26. 26.11 × 4 =
  27. 27.60 × 4 =
  28. 28.59 × 4 =
  29. 29.35 × 4 =
  30. 30.6 × 4 =
  31. 31.23 × 4 =
  32. 32.39 × 4 =
  33. 33.7 × 4 =
  34. 34.14 × 4 =
  35. 35.25 × 4 =
  36. 36.16 × 4 =
  37. 37.34 × 4 =
  38. 38.33 × 4 =
  39. 39.52 × 4 =
  40. 40.24 × 4 =

Answer key

  1. 32
  2. 40
  3. 232
  4. 228
  5. 108
  6. 80
  7. 144
  8. 84
  9. 128
  10. 172
  11. 36
  12. 204
  13. 112
  14. 196
  15. 68
  16. 160
  17. 148
  18. 52
  19. 224
  20. 60
  21. 200
  22. 124
  23. 76
  24. 168
  25. 216
  26. 44
  27. 240
  28. 236
  29. 140
  30. 24
  31. 92
  32. 156
  33. 28
  34. 56
  35. 100
  36. 64
  37. 136
  38. 132
  39. 208
  40. 96

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