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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 610 · 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. 2.32 × 4 =
  3. 3.52 × 4 =
  4. 4.49 × 4 =
  5. 5.31 × 4 =
  6. 6.39 × 4 =
  7. 7.17 × 4 =
  8. 8.53 × 4 =
  9. 9.13 × 4 =
  10. 10.38 × 4 =
  11. 11.21 × 4 =
  12. 12.14 × 4 =
  13. 13.47 × 4 =
  14. 14.11 × 4 =
  15. 15.56 × 4 =
  16. 16.54 × 4 =
  17. 17.40 × 4 =
  18. 18.37 × 4 =
  19. 19.6 × 4 =
  20. 20.27 × 4 =
  21. 21.41 × 4 =
  22. 22.16 × 4 =
  23. 23.12 × 4 =
  24. 24.8 × 4 =
  25. 25.9 × 4 =
  26. 26.46 × 4 =
  27. 27.28 × 4 =
  28. 28.15 × 4 =
  29. 29.34 × 4 =
  30. 30.20 × 4 =
  31. 31.59 × 4 =
  32. 32.42 × 4 =
  33. 33.22 × 4 =
  34. 34.30 × 4 =
  35. 35.23 × 4 =
  36. 36.51 × 4 =
  37. 37.24 × 4 =
  38. 38.35 × 4 =
  39. 39.45 × 4 =
  40. 40.33 × 4 =

Answer key

  1. 228
  2. 128
  3. 208
  4. 196
  5. 124
  6. 156
  7. 68
  8. 212
  9. 52
  10. 152
  11. 84
  12. 56
  13. 188
  14. 44
  15. 224
  16. 216
  17. 160
  18. 148
  19. 24
  20. 108
  21. 164
  22. 64
  23. 48
  24. 32
  25. 36
  26. 184
  27. 112
  28. 60
  29. 136
  30. 80
  31. 236
  32. 168
  33. 88
  34. 120
  35. 92
  36. 204
  37. 96
  38. 140
  39. 180
  40. 132

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