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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 370 · 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. 2.33 × 4 =
  3. 3.14 × 4 =
  4. 4.13 × 4 =
  5. 5.51 × 4 =
  6. 6.42 × 4 =
  7. 7.30 × 4 =
  8. 8.40 × 4 =
  9. 9.39 × 4 =
  10. 10.25 × 4 =
  11. 11.37 × 4 =
  12. 12.22 × 4 =
  13. 13.28 × 4 =
  14. 14.19 × 4 =
  15. 15.26 × 4 =
  16. 16.36 × 4 =
  17. 17.41 × 4 =
  18. 18.21 × 4 =
  19. 19.23 × 4 =
  20. 20.12 × 4 =
  21. 21.58 × 4 =
  22. 22.6 × 4 =
  23. 23.50 × 4 =
  24. 24.43 × 4 =
  25. 25.46 × 4 =
  26. 26.16 × 4 =
  27. 27.49 × 4 =
  28. 28.15 × 4 =
  29. 29.59 × 4 =
  30. 30.52 × 4 =
  31. 31.55 × 4 =
  32. 32.34 × 4 =
  33. 33.20 × 4 =
  34. 34.17 × 4 =
  35. 35.44 × 4 =
  36. 36.27 × 4 =
  37. 37.10 × 4 =
  38. 38.7 × 4 =
  39. 39.35 × 4 =
  40. 40.18 × 4 =

Answer key

  1. 36
  2. 132
  3. 56
  4. 52
  5. 204
  6. 168
  7. 120
  8. 160
  9. 156
  10. 100
  11. 148
  12. 88
  13. 112
  14. 76
  15. 104
  16. 144
  17. 164
  18. 84
  19. 92
  20. 48
  21. 232
  22. 24
  23. 200
  24. 172
  25. 184
  26. 64
  27. 196
  28. 60
  29. 236
  30. 208
  31. 220
  32. 136
  33. 80
  34. 68
  35. 176
  36. 108
  37. 40
  38. 28
  39. 140
  40. 72

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