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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 614 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.32 × 4 =
  2. 2.42 × 4 =
  3. 3.8 × 4 =
  4. 4.56 × 4 =
  5. 5.6 × 4 =
  6. 6.48 × 4 =
  7. 7.36 × 4 =
  8. 8.35 × 4 =
  9. 9.16 × 4 =
  10. 10.52 × 4 =
  11. 11.29 × 4 =
  12. 12.7 × 4 =
  13. 13.21 × 4 =
  14. 14.33 × 4 =
  15. 15.55 × 4 =
  16. 16.17 × 4 =
  17. 17.24 × 4 =
  18. 18.41 × 4 =
  19. 19.40 × 4 =
  20. 20.60 × 4 =
  21. 21.30 × 4 =
  22. 22.11 × 4 =
  23. 23.10 × 4 =
  24. 24.43 × 4 =
  25. 25.37 × 4 =
  26. 26.9 × 4 =
  27. 27.26 × 4 =
  28. 28.20 × 4 =
  29. 29.23 × 4 =
  30. 30.53 × 4 =
  31. 31.49 × 4 =
  32. 32.44 × 4 =
  33. 33.50 × 4 =
  34. 34.57 × 4 =
  35. 35.13 × 4 =
  36. 36.15 × 4 =
  37. 37.31 × 4 =
  38. 38.18 × 4 =
  39. 39.59 × 4 =
  40. 40.47 × 4 =

Answer key

  1. 128
  2. 168
  3. 32
  4. 224
  5. 24
  6. 192
  7. 144
  8. 140
  9. 64
  10. 208
  11. 116
  12. 28
  13. 84
  14. 132
  15. 220
  16. 68
  17. 96
  18. 164
  19. 160
  20. 240
  21. 120
  22. 44
  23. 40
  24. 172
  25. 148
  26. 36
  27. 104
  28. 80
  29. 92
  30. 212
  31. 196
  32. 176
  33. 200
  34. 228
  35. 52
  36. 60
  37. 124
  38. 72
  39. 236
  40. 188

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