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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 471 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.17 × 4 =
  2. 2.57 × 4 =
  3. 3.35 × 4 =
  4. 4.18 × 4 =
  5. 5.21 × 4 =
  6. 6.23 × 4 =
  7. 7.9 × 4 =
  8. 8.45 × 4 =
  9. 9.8 × 4 =
  10. 10.12 × 4 =
  11. 11.36 × 4 =
  12. 12.37 × 4 =
  13. 13.43 × 4 =
  14. 14.56 × 4 =
  15. 15.42 × 4 =
  16. 16.50 × 4 =
  17. 17.28 × 4 =
  18. 18.49 × 4 =
  19. 19.19 × 4 =
  20. 20.58 × 4 =
  21. 21.33 × 4 =
  22. 22.48 × 4 =
  23. 23.59 × 4 =
  24. 24.11 × 4 =
  25. 25.15 × 4 =
  26. 26.29 × 4 =
  27. 27.7 × 4 =
  28. 28.16 × 4 =
  29. 29.6 × 4 =
  30. 30.51 × 4 =
  31. 31.39 × 4 =
  32. 32.25 × 4 =
  33. 33.38 × 4 =
  34. 34.26 × 4 =
  35. 35.20 × 4 =
  36. 36.14 × 4 =
  37. 37.27 × 4 =
  38. 38.22 × 4 =
  39. 39.55 × 4 =
  40. 40.34 × 4 =

Answer key

  1. 68
  2. 228
  3. 140
  4. 72
  5. 84
  6. 92
  7. 36
  8. 180
  9. 32
  10. 48
  11. 144
  12. 148
  13. 172
  14. 224
  15. 168
  16. 200
  17. 112
  18. 196
  19. 76
  20. 232
  21. 132
  22. 192
  23. 236
  24. 44
  25. 60
  26. 116
  27. 28
  28. 64
  29. 24
  30. 204
  31. 156
  32. 100
  33. 152
  34. 104
  35. 80
  36. 56
  37. 108
  38. 88
  39. 220
  40. 136

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