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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 675 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.57 × 4 =
  2. 2.17 × 4 =
  3. 3.56 × 4 =
  4. 4.40 × 4 =
  5. 5.37 × 4 =
  6. 6.32 × 4 =
  7. 7.15 × 4 =
  8. 8.30 × 4 =
  9. 9.42 × 4 =
  10. 10.9 × 4 =
  11. 11.38 × 4 =
  12. 12.14 × 4 =
  13. 13.23 × 4 =
  14. 14.36 × 4 =
  15. 15.53 × 4 =
  16. 16.39 × 4 =
  17. 17.51 × 4 =
  18. 18.60 × 4 =
  19. 19.43 × 4 =
  20. 20.41 × 4 =
  21. 21.46 × 4 =
  22. 22.11 × 4 =
  23. 23.44 × 4 =
  24. 24.35 × 4 =
  25. 25.16 × 4 =
  26. 26.20 × 4 =
  27. 27.29 × 4 =
  28. 28.27 × 4 =
  29. 29.25 × 4 =
  30. 30.49 × 4 =
  31. 31.19 × 4 =
  32. 32.50 × 4 =
  33. 33.6 × 4 =
  34. 34.23 × 4 =
  35. 35.45 × 4 =
  36. 36.21 × 4 =
  37. 37.28 × 4 =
  38. 38.24 × 4 =
  39. 39.48 × 4 =
  40. 40.33 × 4 =

Answer key

  1. 228
  2. 68
  3. 224
  4. 160
  5. 148
  6. 128
  7. 60
  8. 120
  9. 168
  10. 36
  11. 152
  12. 56
  13. 92
  14. 144
  15. 212
  16. 156
  17. 204
  18. 240
  19. 172
  20. 164
  21. 184
  22. 44
  23. 176
  24. 140
  25. 64
  26. 80
  27. 116
  28. 108
  29. 100
  30. 196
  31. 76
  32. 200
  33. 24
  34. 92
  35. 180
  36. 84
  37. 112
  38. 96
  39. 192
  40. 132

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