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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 351 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.8 × 4 =
  2. 2.38 × 4 =
  3. 3.17 × 4 =
  4. 4.20 × 4 =
  5. 5.18 × 4 =
  6. 6.36 × 4 =
  7. 7.37 × 4 =
  8. 8.11 × 4 =
  9. 9.34 × 4 =
  10. 10.15 × 4 =
  11. 11.35 × 4 =
  12. 12.23 × 4 =
  13. 13.57 × 4 =
  14. 14.9 × 4 =
  15. 15.52 × 4 =
  16. 16.6 × 4 =
  17. 17.53 × 4 =
  18. 18.50 × 4 =
  19. 19.14 × 4 =
  20. 20.58 × 4 =
  21. 21.47 × 4 =
  22. 22.21 × 4 =
  23. 23.43 × 4 =
  24. 24.59 × 4 =
  25. 25.31 × 4 =
  26. 26.12 × 4 =
  27. 27.22 × 4 =
  28. 28.51 × 4 =
  29. 29.16 × 4 =
  30. 30.46 × 4 =
  31. 31.24 × 4 =
  32. 32.30 × 4 =
  33. 33.49 × 4 =
  34. 34.29 × 4 =
  35. 35.27 × 4 =
  36. 36.19 × 4 =
  37. 37.28 × 4 =
  38. 38.41 × 4 =
  39. 39.10 × 4 =
  40. 40.25 × 4 =

Answer key

  1. 32
  2. 152
  3. 68
  4. 80
  5. 72
  6. 144
  7. 148
  8. 44
  9. 136
  10. 60
  11. 140
  12. 92
  13. 228
  14. 36
  15. 208
  16. 24
  17. 212
  18. 200
  19. 56
  20. 232
  21. 188
  22. 84
  23. 172
  24. 236
  25. 124
  26. 48
  27. 88
  28. 204
  29. 64
  30. 184
  31. 96
  32. 120
  33. 196
  34. 116
  35. 108
  36. 76
  37. 112
  38. 164
  39. 40
  40. 100

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