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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 171 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.9 × 4 =
  2. 2.52 × 4 =
  3. 3.55 × 4 =
  4. 4.11 × 4 =
  5. 5.36 × 4 =
  6. 6.47 × 4 =
  7. 7.16 × 4 =
  8. 8.7 × 4 =
  9. 9.24 × 4 =
  10. 10.27 × 4 =
  11. 11.53 × 4 =
  12. 12.13 × 4 =
  13. 13.51 × 4 =
  14. 14.32 × 4 =
  15. 15.21 × 4 =
  16. 16.33 × 4 =
  17. 17.30 × 4 =
  18. 18.29 × 4 =
  19. 19.14 × 4 =
  20. 20.60 × 4 =
  21. 21.50 × 4 =
  22. 22.34 × 4 =
  23. 23.39 × 4 =
  24. 24.19 × 4 =
  25. 25.23 × 4 =
  26. 26.28 × 4 =
  27. 27.43 × 4 =
  28. 28.8 × 4 =
  29. 29.42 × 4 =
  30. 30.26 × 4 =
  31. 31.18 × 4 =
  32. 32.40 × 4 =
  33. 33.49 × 4 =
  34. 34.38 × 4 =
  35. 35.17 × 4 =
  36. 36.12 × 4 =
  37. 37.57 × 4 =
  38. 38.15 × 4 =
  39. 39.58 × 4 =
  40. 40.31 × 4 =

Answer key

  1. 36
  2. 208
  3. 220
  4. 44
  5. 144
  6. 188
  7. 64
  8. 28
  9. 96
  10. 108
  11. 212
  12. 52
  13. 204
  14. 128
  15. 84
  16. 132
  17. 120
  18. 116
  19. 56
  20. 240
  21. 200
  22. 136
  23. 156
  24. 76
  25. 92
  26. 112
  27. 172
  28. 32
  29. 168
  30. 104
  31. 72
  32. 160
  33. 196
  34. 152
  35. 68
  36. 48
  37. 228
  38. 60
  39. 232
  40. 124

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