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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 145 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.60 × 4 =
  2. 2.29 × 4 =
  3. 3.17 × 4 =
  4. 4.44 × 4 =
  5. 5.36 × 4 =
  6. 6.22 × 4 =
  7. 7.41 × 4 =
  8. 8.23 × 4 =
  9. 9.16 × 4 =
  10. 10.24 × 4 =
  11. 11.37 × 4 =
  12. 12.55 × 4 =
  13. 13.50 × 4 =
  14. 14.58 × 4 =
  15. 15.19 × 4 =
  16. 16.35 × 4 =
  17. 17.47 × 4 =
  18. 18.15 × 4 =
  19. 19.31 × 4 =
  20. 20.28 × 4 =
  21. 21.49 × 4 =
  22. 22.12 × 4 =
  23. 23.11 × 4 =
  24. 24.33 × 4 =
  25. 25.34 × 4 =
  26. 26.20 × 4 =
  27. 27.51 × 4 =
  28. 28.10 × 4 =
  29. 29.13 × 4 =
  30. 30.14 × 4 =
  31. 31.59 × 4 =
  32. 32.42 × 4 =
  33. 33.43 × 4 =
  34. 34.56 × 4 =
  35. 35.45 × 4 =
  36. 36.18 × 4 =
  37. 37.21 × 4 =
  38. 38.7 × 4 =
  39. 39.48 × 4 =
  40. 40.46 × 4 =

Answer key

  1. 240
  2. 116
  3. 68
  4. 176
  5. 144
  6. 88
  7. 164
  8. 92
  9. 64
  10. 96
  11. 148
  12. 220
  13. 200
  14. 232
  15. 76
  16. 140
  17. 188
  18. 60
  19. 124
  20. 112
  21. 196
  22. 48
  23. 44
  24. 132
  25. 136
  26. 80
  27. 204
  28. 40
  29. 52
  30. 56
  31. 236
  32. 168
  33. 172
  34. 224
  35. 180
  36. 72
  37. 84
  38. 28
  39. 192
  40. 184

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