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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 737 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.34 × 4 =
  2. 2.56 × 4 =
  3. 3.22 × 4 =
  4. 4.15 × 4 =
  5. 5.46 × 4 =
  6. 6.50 × 4 =
  7. 7.44 × 4 =
  8. 8.40 × 4 =
  9. 9.48 × 4 =
  10. 10.54 × 4 =
  11. 11.33 × 4 =
  12. 12.29 × 4 =
  13. 13.32 × 4 =
  14. 14.9 × 4 =
  15. 15.11 × 4 =
  16. 16.38 × 4 =
  17. 17.49 × 4 =
  18. 18.6 × 4 =
  19. 19.31 × 4 =
  20. 20.10 × 4 =
  21. 21.19 × 4 =
  22. 22.24 × 4 =
  23. 23.58 × 4 =
  24. 24.21 × 4 =
  25. 25.57 × 4 =
  26. 26.23 × 4 =
  27. 27.27 × 4 =
  28. 28.13 × 4 =
  29. 29.37 × 4 =
  30. 30.51 × 4 =
  31. 31.16 × 4 =
  32. 32.59 × 4 =
  33. 33.42 × 4 =
  34. 34.26 × 4 =
  35. 35.25 × 4 =
  36. 36.55 × 4 =
  37. 37.60 × 4 =
  38. 38.8 × 4 =
  39. 39.7 × 4 =
  40. 40.20 × 4 =

Answer key

  1. 136
  2. 224
  3. 88
  4. 60
  5. 184
  6. 200
  7. 176
  8. 160
  9. 192
  10. 216
  11. 132
  12. 116
  13. 128
  14. 36
  15. 44
  16. 152
  17. 196
  18. 24
  19. 124
  20. 40
  21. 76
  22. 96
  23. 232
  24. 84
  25. 228
  26. 92
  27. 108
  28. 52
  29. 148
  30. 204
  31. 64
  32. 236
  33. 168
  34. 104
  35. 100
  36. 220
  37. 240
  38. 32
  39. 28
  40. 80

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