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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 105 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.29 × 4 =
  2. 2.57 × 4 =
  3. 3.35 × 4 =
  4. 4.41 × 4 =
  5. 5.56 × 4 =
  6. 6.33 × 4 =
  7. 7.60 × 4 =
  8. 8.23 × 4 =
  9. 9.30 × 4 =
  10. 10.37 × 4 =
  11. 11.26 × 4 =
  12. 12.34 × 4 =
  13. 13.42 × 4 =
  14. 14.44 × 4 =
  15. 15.51 × 4 =
  16. 16.59 × 4 =
  17. 17.28 × 4 =
  18. 18.36 × 4 =
  19. 19.10 × 4 =
  20. 20.40 × 4 =
  21. 21.24 × 4 =
  22. 22.47 × 4 =
  23. 23.17 × 4 =
  24. 24.16 × 4 =
  25. 25.25 × 4 =
  26. 26.27 × 4 =
  27. 27.9 × 4 =
  28. 28.22 × 4 =
  29. 29.32 × 4 =
  30. 30.55 × 4 =
  31. 31.46 × 4 =
  32. 32.21 × 4 =
  33. 33.15 × 4 =
  34. 34.48 × 4 =
  35. 35.7 × 4 =
  36. 36.43 × 4 =
  37. 37.6 × 4 =
  38. 38.20 × 4 =
  39. 39.49 × 4 =
  40. 40.58 × 4 =

Answer key

  1. 116
  2. 228
  3. 140
  4. 164
  5. 224
  6. 132
  7. 240
  8. 92
  9. 120
  10. 148
  11. 104
  12. 136
  13. 168
  14. 176
  15. 204
  16. 236
  17. 112
  18. 144
  19. 40
  20. 160
  21. 96
  22. 188
  23. 68
  24. 64
  25. 100
  26. 108
  27. 36
  28. 88
  29. 128
  30. 220
  31. 184
  32. 84
  33. 60
  34. 192
  35. 28
  36. 172
  37. 24
  38. 80
  39. 196
  40. 232

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