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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 671 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.54 × 4 =
  2. 2.34 × 4 =
  3. 3.14 × 4 =
  4. 4.10 × 4 =
  5. 5.7 × 4 =
  6. 6.36 × 4 =
  7. 7.21 × 4 =
  8. 8.41 × 4 =
  9. 9.49 × 4 =
  10. 10.48 × 4 =
  11. 11.27 × 4 =
  12. 12.13 × 4 =
  13. 13.23 × 4 =
  14. 14.32 × 4 =
  15. 15.58 × 4 =
  16. 16.11 × 4 =
  17. 17.9 × 4 =
  18. 18.53 × 4 =
  19. 19.17 × 4 =
  20. 20.42 × 4 =
  21. 21.26 × 4 =
  22. 22.16 × 4 =
  23. 23.28 × 4 =
  24. 24.47 × 4 =
  25. 25.8 × 4 =
  26. 26.55 × 4 =
  27. 27.6 × 4 =
  28. 28.45 × 4 =
  29. 29.38 × 4 =
  30. 30.59 × 4 =
  31. 31.44 × 4 =
  32. 32.50 × 4 =
  33. 33.18 × 4 =
  34. 34.29 × 4 =
  35. 35.33 × 4 =
  36. 36.52 × 4 =
  37. 37.20 × 4 =
  38. 38.51 × 4 =
  39. 39.25 × 4 =
  40. 40.57 × 4 =

Answer key

  1. 216
  2. 136
  3. 56
  4. 40
  5. 28
  6. 144
  7. 84
  8. 164
  9. 196
  10. 192
  11. 108
  12. 52
  13. 92
  14. 128
  15. 232
  16. 44
  17. 36
  18. 212
  19. 68
  20. 168
  21. 104
  22. 64
  23. 112
  24. 188
  25. 32
  26. 220
  27. 24
  28. 180
  29. 152
  30. 236
  31. 176
  32. 200
  33. 72
  34. 116
  35. 132
  36. 208
  37. 80
  38. 204
  39. 100
  40. 228

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