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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 480 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.18 × 4 =
  2. 2.30 × 4 =
  3. 3.20 × 4 =
  4. 4.21 × 4 =
  5. 5.48 × 4 =
  6. 6.22 × 4 =
  7. 7.36 × 4 =
  8. 8.56 × 4 =
  9. 9.50 × 4 =
  10. 10.24 × 4 =
  11. 11.25 × 4 =
  12. 12.46 × 4 =
  13. 13.23 × 4 =
  14. 14.57 × 4 =
  15. 15.34 × 4 =
  16. 16.15 × 4 =
  17. 17.51 × 4 =
  18. 18.6 × 4 =
  19. 19.16 × 4 =
  20. 20.12 × 4 =
  21. 21.7 × 4 =
  22. 22.52 × 4 =
  23. 23.32 × 4 =
  24. 24.14 × 4 =
  25. 25.13 × 4 =
  26. 26.19 × 4 =
  27. 27.40 × 4 =
  28. 28.29 × 4 =
  29. 29.59 × 4 =
  30. 30.28 × 4 =
  31. 31.53 × 4 =
  32. 32.33 × 4 =
  33. 33.8 × 4 =
  34. 34.45 × 4 =
  35. 35.55 × 4 =
  36. 36.9 × 4 =
  37. 37.42 × 4 =
  38. 38.60 × 4 =
  39. 39.10 × 4 =
  40. 40.31 × 4 =

Answer key

  1. 72
  2. 120
  3. 80
  4. 84
  5. 192
  6. 88
  7. 144
  8. 224
  9. 200
  10. 96
  11. 100
  12. 184
  13. 92
  14. 228
  15. 136
  16. 60
  17. 204
  18. 24
  19. 64
  20. 48
  21. 28
  22. 208
  23. 128
  24. 56
  25. 52
  26. 76
  27. 160
  28. 116
  29. 236
  30. 112
  31. 212
  32. 132
  33. 32
  34. 180
  35. 220
  36. 36
  37. 168
  38. 240
  39. 40
  40. 124

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