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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 801 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.21 × 4 =
  2. 2.38 × 4 =
  3. 3.15 × 4 =
  4. 4.12 × 4 =
  5. 5.46 × 4 =
  6. 6.54 × 4 =
  7. 7.43 × 4 =
  8. 8.26 × 4 =
  9. 9.27 × 4 =
  10. 10.8 × 4 =
  11. 11.10 × 4 =
  12. 12.50 × 4 =
  13. 13.17 × 4 =
  14. 14.11 × 4 =
  15. 15.31 × 4 =
  16. 16.42 × 4 =
  17. 17.48 × 4 =
  18. 18.14 × 4 =
  19. 19.35 × 4 =
  20. 20.47 × 4 =
  21. 21.28 × 4 =
  22. 22.24 × 4 =
  23. 23.19 × 4 =
  24. 24.58 × 4 =
  25. 25.25 × 4 =
  26. 26.23 × 4 =
  27. 27.30 × 4 =
  28. 28.32 × 4 =
  29. 29.59 × 4 =
  30. 30.53 × 4 =
  31. 31.45 × 4 =
  32. 32.36 × 4 =
  33. 33.6 × 4 =
  34. 34.7 × 4 =
  35. 35.57 × 4 =
  36. 36.9 × 4 =
  37. 37.16 × 4 =
  38. 38.60 × 4 =
  39. 39.55 × 4 =
  40. 40.51 × 4 =

Answer key

  1. 84
  2. 152
  3. 60
  4. 48
  5. 184
  6. 216
  7. 172
  8. 104
  9. 108
  10. 32
  11. 40
  12. 200
  13. 68
  14. 44
  15. 124
  16. 168
  17. 192
  18. 56
  19. 140
  20. 188
  21. 112
  22. 96
  23. 76
  24. 232
  25. 100
  26. 92
  27. 120
  28. 128
  29. 236
  30. 212
  31. 180
  32. 144
  33. 24
  34. 28
  35. 228
  36. 36
  37. 64
  38. 240
  39. 220
  40. 204

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