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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 99 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.31 × 4 =
  2. 2.47 × 4 =
  3. 3.18 × 4 =
  4. 4.22 × 4 =
  5. 5.34 × 4 =
  6. 6.45 × 4 =
  7. 7.51 × 4 =
  8. 8.28 × 4 =
  9. 9.57 × 4 =
  10. 10.7 × 4 =
  11. 11.39 × 4 =
  12. 12.53 × 4 =
  13. 13.17 × 4 =
  14. 14.50 × 4 =
  15. 15.19 × 4 =
  16. 16.16 × 4 =
  17. 17.44 × 4 =
  18. 18.60 × 4 =
  19. 19.12 × 4 =
  20. 20.6 × 4 =
  21. 21.13 × 4 =
  22. 22.52 × 4 =
  23. 23.49 × 4 =
  24. 24.32 × 4 =
  25. 25.40 × 4 =
  26. 26.21 × 4 =
  27. 27.56 × 4 =
  28. 28.23 × 4 =
  29. 29.20 × 4 =
  30. 30.43 × 4 =
  31. 31.59 × 4 =
  32. 32.35 × 4 =
  33. 33.54 × 4 =
  34. 34.27 × 4 =
  35. 35.42 × 4 =
  36. 36.38 × 4 =
  37. 37.24 × 4 =
  38. 38.11 × 4 =
  39. 39.26 × 4 =
  40. 40.9 × 4 =

Answer key

  1. 124
  2. 188
  3. 72
  4. 88
  5. 136
  6. 180
  7. 204
  8. 112
  9. 228
  10. 28
  11. 156
  12. 212
  13. 68
  14. 200
  15. 76
  16. 64
  17. 176
  18. 240
  19. 48
  20. 24
  21. 52
  22. 208
  23. 196
  24. 128
  25. 160
  26. 84
  27. 224
  28. 92
  29. 80
  30. 172
  31. 236
  32. 140
  33. 216
  34. 108
  35. 168
  36. 152
  37. 96
  38. 44
  39. 104
  40. 36

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