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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 472 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.25 × 4 =
  2. 2.50 × 4 =
  3. 3.23 × 4 =
  4. 4.38 × 4 =
  5. 5.33 × 4 =
  6. 6.21 × 4 =
  7. 7.43 × 4 =
  8. 8.47 × 4 =
  9. 9.45 × 4 =
  10. 10.15 × 4 =
  11. 11.17 × 4 =
  12. 12.35 × 4 =
  13. 13.18 × 4 =
  14. 14.16 × 4 =
  15. 15.24 × 4 =
  16. 16.40 × 4 =
  17. 17.52 × 4 =
  18. 18.34 × 4 =
  19. 19.6 × 4 =
  20. 20.11 × 4 =
  21. 21.39 × 4 =
  22. 22.20 × 4 =
  23. 23.14 × 4 =
  24. 24.48 × 4 =
  25. 25.58 × 4 =
  26. 26.54 × 4 =
  27. 27.9 × 4 =
  28. 28.8 × 4 =
  29. 29.7 × 4 =
  30. 30.56 × 4 =
  31. 31.60 × 4 =
  32. 32.29 × 4 =
  33. 33.27 × 4 =
  34. 34.30 × 4 =
  35. 35.36 × 4 =
  36. 36.10 × 4 =
  37. 37.41 × 4 =
  38. 38.37 × 4 =
  39. 39.59 × 4 =
  40. 40.12 × 4 =

Answer key

  1. 100
  2. 200
  3. 92
  4. 152
  5. 132
  6. 84
  7. 172
  8. 188
  9. 180
  10. 60
  11. 68
  12. 140
  13. 72
  14. 64
  15. 96
  16. 160
  17. 208
  18. 136
  19. 24
  20. 44
  21. 156
  22. 80
  23. 56
  24. 192
  25. 232
  26. 216
  27. 36
  28. 32
  29. 28
  30. 224
  31. 240
  32. 116
  33. 108
  34. 120
  35. 144
  36. 40
  37. 164
  38. 148
  39. 236
  40. 48

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