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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 635 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.39 × 4 =
  2. 2.50 × 4 =
  3. 3.48 × 4 =
  4. 4.15 × 4 =
  5. 5.35 × 4 =
  6. 6.21 × 4 =
  7. 7.53 × 4 =
  8. 8.14 × 4 =
  9. 9.28 × 4 =
  10. 10.37 × 4 =
  11. 11.16 × 4 =
  12. 12.32 × 4 =
  13. 13.24 × 4 =
  14. 14.10 × 4 =
  15. 15.27 × 4 =
  16. 16.38 × 4 =
  17. 17.22 × 4 =
  18. 18.12 × 4 =
  19. 19.11 × 4 =
  20. 20.57 × 4 =
  21. 21.6 × 4 =
  22. 22.9 × 4 =
  23. 23.58 × 4 =
  24. 24.43 × 4 =
  25. 25.18 × 4 =
  26. 26.54 × 4 =
  27. 27.8 × 4 =
  28. 28.20 × 4 =
  29. 29.34 × 4 =
  30. 30.51 × 4 =
  31. 31.47 × 4 =
  32. 32.49 × 4 =
  33. 33.23 × 4 =
  34. 34.13 × 4 =
  35. 35.7 × 4 =
  36. 36.41 × 4 =
  37. 37.55 × 4 =
  38. 38.52 × 4 =
  39. 39.56 × 4 =
  40. 40.29 × 4 =

Answer key

  1. 156
  2. 200
  3. 192
  4. 60
  5. 140
  6. 84
  7. 212
  8. 56
  9. 112
  10. 148
  11. 64
  12. 128
  13. 96
  14. 40
  15. 108
  16. 152
  17. 88
  18. 48
  19. 44
  20. 228
  21. 24
  22. 36
  23. 232
  24. 172
  25. 72
  26. 216
  27. 32
  28. 80
  29. 136
  30. 204
  31. 188
  32. 196
  33. 92
  34. 52
  35. 28
  36. 164
  37. 220
  38. 208
  39. 224
  40. 116

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