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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 277 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.35 × 4 =
  2. 2.27 × 4 =
  3. 3.16 × 4 =
  4. 4.57 × 4 =
  5. 5.7 × 4 =
  6. 6.12 × 4 =
  7. 7.55 × 4 =
  8. 8.32 × 4 =
  9. 9.20 × 4 =
  10. 10.8 × 4 =
  11. 11.50 × 4 =
  12. 12.46 × 4 =
  13. 13.15 × 4 =
  14. 14.9 × 4 =
  15. 15.14 × 4 =
  16. 16.43 × 4 =
  17. 17.24 × 4 =
  18. 18.21 × 4 =
  19. 19.48 × 4 =
  20. 20.28 × 4 =
  21. 21.38 × 4 =
  22. 22.10 × 4 =
  23. 23.56 × 4 =
  24. 24.40 × 4 =
  25. 25.23 × 4 =
  26. 26.59 × 4 =
  27. 27.30 × 4 =
  28. 28.41 × 4 =
  29. 29.13 × 4 =
  30. 30.42 × 4 =
  31. 31.25 × 4 =
  32. 32.54 × 4 =
  33. 33.60 × 4 =
  34. 34.34 × 4 =
  35. 35.36 × 4 =
  36. 36.17 × 4 =
  37. 37.22 × 4 =
  38. 38.18 × 4 =
  39. 39.49 × 4 =
  40. 40.6 × 4 =

Answer key

  1. 140
  2. 108
  3. 64
  4. 228
  5. 28
  6. 48
  7. 220
  8. 128
  9. 80
  10. 32
  11. 200
  12. 184
  13. 60
  14. 36
  15. 56
  16. 172
  17. 96
  18. 84
  19. 192
  20. 112
  21. 152
  22. 40
  23. 224
  24. 160
  25. 92
  26. 236
  27. 120
  28. 164
  29. 52
  30. 168
  31. 100
  32. 216
  33. 240
  34. 136
  35. 144
  36. 68
  37. 88
  38. 72
  39. 196
  40. 24

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