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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 77 · 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. 2.50 × 4 =
  3. 3.56 × 4 =
  4. 4.20 × 4 =
  5. 5.15 × 4 =
  6. 6.18 × 4 =
  7. 7.55 × 4 =
  8. 8.31 × 4 =
  9. 9.26 × 4 =
  10. 10.10 × 4 =
  11. 11.34 × 4 =
  12. 12.57 × 4 =
  13. 13.8 × 4 =
  14. 14.7 × 4 =
  15. 15.21 × 4 =
  16. 16.52 × 4 =
  17. 17.41 × 4 =
  18. 18.49 × 4 =
  19. 19.59 × 4 =
  20. 20.30 × 4 =
  21. 21.45 × 4 =
  22. 22.19 × 4 =
  23. 23.40 × 4 =
  24. 24.43 × 4 =
  25. 25.13 × 4 =
  26. 26.60 × 4 =
  27. 27.29 × 4 =
  28. 28.6 × 4 =
  29. 29.16 × 4 =
  30. 30.23 × 4 =
  31. 31.58 × 4 =
  32. 32.17 × 4 =
  33. 33.22 × 4 =
  34. 34.47 × 4 =
  35. 35.33 × 4 =
  36. 36.32 × 4 =
  37. 37.28 × 4 =
  38. 38.25 × 4 =
  39. 39.36 × 4 =
  40. 40.24 × 4 =

Answer key

  1. 140
  2. 200
  3. 224
  4. 80
  5. 60
  6. 72
  7. 220
  8. 124
  9. 104
  10. 40
  11. 136
  12. 228
  13. 32
  14. 28
  15. 84
  16. 208
  17. 164
  18. 196
  19. 236
  20. 120
  21. 180
  22. 76
  23. 160
  24. 172
  25. 52
  26. 240
  27. 116
  28. 24
  29. 64
  30. 92
  31. 232
  32. 68
  33. 88
  34. 188
  35. 132
  36. 128
  37. 112
  38. 100
  39. 144
  40. 96

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