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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 539 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.50 × 4 =
  2. 2.10 × 4 =
  3. 3.25 × 4 =
  4. 4.46 × 4 =
  5. 5.34 × 4 =
  6. 6.52 × 4 =
  7. 7.32 × 4 =
  8. 8.55 × 4 =
  9. 9.41 × 4 =
  10. 10.7 × 4 =
  11. 11.30 × 4 =
  12. 12.21 × 4 =
  13. 13.13 × 4 =
  14. 14.35 × 4 =
  15. 15.43 × 4 =
  16. 16.9 × 4 =
  17. 17.11 × 4 =
  18. 18.18 × 4 =
  19. 19.53 × 4 =
  20. 20.17 × 4 =
  21. 21.14 × 4 =
  22. 22.57 × 4 =
  23. 23.59 × 4 =
  24. 24.12 × 4 =
  25. 25.26 × 4 =
  26. 26.37 × 4 =
  27. 27.19 × 4 =
  28. 28.38 × 4 =
  29. 29.49 × 4 =
  30. 30.44 × 4 =
  31. 31.39 × 4 =
  32. 32.60 × 4 =
  33. 33.51 × 4 =
  34. 34.47 × 4 =
  35. 35.24 × 4 =
  36. 36.16 × 4 =
  37. 37.56 × 4 =
  38. 38.27 × 4 =
  39. 39.22 × 4 =
  40. 40.6 × 4 =

Answer key

  1. 200
  2. 40
  3. 100
  4. 184
  5. 136
  6. 208
  7. 128
  8. 220
  9. 164
  10. 28
  11. 120
  12. 84
  13. 52
  14. 140
  15. 172
  16. 36
  17. 44
  18. 72
  19. 212
  20. 68
  21. 56
  22. 228
  23. 236
  24. 48
  25. 104
  26. 148
  27. 76
  28. 152
  29. 196
  30. 176
  31. 156
  32. 240
  33. 204
  34. 188
  35. 96
  36. 64
  37. 224
  38. 108
  39. 88
  40. 24

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