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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 606 · 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. 2.11 × 4 =
  3. 3.56 × 4 =
  4. 4.46 × 4 =
  5. 5.58 × 4 =
  6. 6.14 × 4 =
  7. 7.57 × 4 =
  8. 8.18 × 4 =
  9. 9.29 × 4 =
  10. 10.9 × 4 =
  11. 11.10 × 4 =
  12. 12.6 × 4 =
  13. 13.51 × 4 =
  14. 14.22 × 4 =
  15. 15.40 × 4 =
  16. 16.19 × 4 =
  17. 17.24 × 4 =
  18. 18.16 × 4 =
  19. 19.20 × 4 =
  20. 20.44 × 4 =
  21. 21.41 × 4 =
  22. 22.13 × 4 =
  23. 23.38 × 4 =
  24. 24.30 × 4 =
  25. 25.49 × 4 =
  26. 26.27 × 4 =
  27. 27.34 × 4 =
  28. 28.53 × 4 =
  29. 29.15 × 4 =
  30. 30.12 × 4 =
  31. 31.36 × 4 =
  32. 32.50 × 4 =
  33. 33.37 × 4 =
  34. 34.26 × 4 =
  35. 35.7 × 4 =
  36. 36.35 × 4 =
  37. 37.55 × 4 =
  38. 38.60 × 4 =
  39. 39.54 × 4 =
  40. 40.47 × 4 =

Answer key

  1. 84
  2. 44
  3. 224
  4. 184
  5. 232
  6. 56
  7. 228
  8. 72
  9. 116
  10. 36
  11. 40
  12. 24
  13. 204
  14. 88
  15. 160
  16. 76
  17. 96
  18. 64
  19. 80
  20. 176
  21. 164
  22. 52
  23. 152
  24. 120
  25. 196
  26. 108
  27. 136
  28. 212
  29. 60
  30. 48
  31. 144
  32. 200
  33. 148
  34. 104
  35. 28
  36. 140
  37. 220
  38. 240
  39. 216
  40. 188

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