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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 513 · 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. 2.50 × 4 =
  3. 3.58 × 4 =
  4. 4.13 × 4 =
  5. 5.38 × 4 =
  6. 6.36 × 4 =
  7. 7.47 × 4 =
  8. 8.26 × 4 =
  9. 9.18 × 4 =
  10. 10.49 × 4 =
  11. 11.55 × 4 =
  12. 12.8 × 4 =
  13. 13.21 × 4 =
  14. 14.52 × 4 =
  15. 15.6 × 4 =
  16. 16.30 × 4 =
  17. 17.60 × 4 =
  18. 18.15 × 4 =
  19. 19.12 × 4 =
  20. 20.43 × 4 =
  21. 21.11 × 4 =
  22. 22.53 × 4 =
  23. 23.45 × 4 =
  24. 24.14 × 4 =
  25. 25.23 × 4 =
  26. 26.22 × 4 =
  27. 27.28 × 4 =
  28. 28.7 × 4 =
  29. 29.48 × 4 =
  30. 30.32 × 4 =
  31. 31.59 × 4 =
  32. 32.39 × 4 =
  33. 33.57 × 4 =
  34. 34.25 × 4 =
  35. 35.44 × 4 =
  36. 36.46 × 4 =
  37. 37.19 × 4 =
  38. 38.20 × 4 =
  39. 39.35 × 4 =
  40. 40.51 × 4 =

Answer key

  1. 36
  2. 200
  3. 232
  4. 52
  5. 152
  6. 144
  7. 188
  8. 104
  9. 72
  10. 196
  11. 220
  12. 32
  13. 84
  14. 208
  15. 24
  16. 120
  17. 240
  18. 60
  19. 48
  20. 172
  21. 44
  22. 212
  23. 180
  24. 56
  25. 92
  26. 88
  27. 112
  28. 28
  29. 192
  30. 128
  31. 236
  32. 156
  33. 228
  34. 100
  35. 176
  36. 184
  37. 76
  38. 80
  39. 140
  40. 204

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