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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 380 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.9 × 4 =
  2. 2.49 × 4 =
  3. 3.48 × 4 =
  4. 4.34 × 4 =
  5. 5.13 × 4 =
  6. 6.32 × 4 =
  7. 7.16 × 4 =
  8. 8.8 × 4 =
  9. 9.35 × 4 =
  10. 10.33 × 4 =
  11. 11.44 × 4 =
  12. 12.28 × 4 =
  13. 13.19 × 4 =
  14. 14.25 × 4 =
  15. 15.27 × 4 =
  16. 16.53 × 4 =
  17. 17.51 × 4 =
  18. 18.11 × 4 =
  19. 19.10 × 4 =
  20. 20.29 × 4 =
  21. 21.18 × 4 =
  22. 22.38 × 4 =
  23. 23.58 × 4 =
  24. 24.36 × 4 =
  25. 25.41 × 4 =
  26. 26.59 × 4 =
  27. 27.46 × 4 =
  28. 28.17 × 4 =
  29. 29.37 × 4 =
  30. 30.43 × 4 =
  31. 31.39 × 4 =
  32. 32.23 × 4 =
  33. 33.40 × 4 =
  34. 34.47 × 4 =
  35. 35.7 × 4 =
  36. 36.52 × 4 =
  37. 37.14 × 4 =
  38. 38.50 × 4 =
  39. 39.15 × 4 =
  40. 40.45 × 4 =

Answer key

  1. 36
  2. 196
  3. 192
  4. 136
  5. 52
  6. 128
  7. 64
  8. 32
  9. 140
  10. 132
  11. 176
  12. 112
  13. 76
  14. 100
  15. 108
  16. 212
  17. 204
  18. 44
  19. 40
  20. 116
  21. 72
  22. 152
  23. 232
  24. 144
  25. 164
  26. 236
  27. 184
  28. 68
  29. 148
  30. 172
  31. 156
  32. 92
  33. 160
  34. 188
  35. 28
  36. 208
  37. 56
  38. 200
  39. 60
  40. 180

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