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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 216 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.41 × 4 =
  2. 2.15 × 4 =
  3. 3.23 × 4 =
  4. 4.16 × 4 =
  5. 5.58 × 4 =
  6. 6.24 × 4 =
  7. 7.57 × 4 =
  8. 8.37 × 4 =
  9. 9.60 × 4 =
  10. 10.17 × 4 =
  11. 11.39 × 4 =
  12. 12.11 × 4 =
  13. 13.34 × 4 =
  14. 14.44 × 4 =
  15. 15.56 × 4 =
  16. 16.18 × 4 =
  17. 17.14 × 4 =
  18. 18.43 × 4 =
  19. 19.20 × 4 =
  20. 20.49 × 4 =
  21. 21.13 × 4 =
  22. 22.12 × 4 =
  23. 23.26 × 4 =
  24. 24.59 × 4 =
  25. 25.22 × 4 =
  26. 26.29 × 4 =
  27. 27.19 × 4 =
  28. 28.40 × 4 =
  29. 29.30 × 4 =
  30. 30.55 × 4 =
  31. 31.6 × 4 =
  32. 32.31 × 4 =
  33. 33.9 × 4 =
  34. 34.50 × 4 =
  35. 35.35 × 4 =
  36. 36.46 × 4 =
  37. 37.33 × 4 =
  38. 38.27 × 4 =
  39. 39.48 × 4 =
  40. 40.8 × 4 =

Answer key

  1. 164
  2. 60
  3. 92
  4. 64
  5. 232
  6. 96
  7. 228
  8. 148
  9. 240
  10. 68
  11. 156
  12. 44
  13. 136
  14. 176
  15. 224
  16. 72
  17. 56
  18. 172
  19. 80
  20. 196
  21. 52
  22. 48
  23. 104
  24. 236
  25. 88
  26. 116
  27. 76
  28. 160
  29. 120
  30. 220
  31. 24
  32. 124
  33. 36
  34. 200
  35. 140
  36. 184
  37. 132
  38. 108
  39. 192
  40. 32

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