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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 178 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.7 × 4 =
  2. 2.33 × 4 =
  3. 3.58 × 4 =
  4. 4.52 × 4 =
  5. 5.48 × 4 =
  6. 6.40 × 4 =
  7. 7.16 × 4 =
  8. 8.44 × 4 =
  9. 9.43 × 4 =
  10. 10.11 × 4 =
  11. 11.42 × 4 =
  12. 12.38 × 4 =
  13. 13.18 × 4 =
  14. 14.31 × 4 =
  15. 15.19 × 4 =
  16. 16.59 × 4 =
  17. 17.23 × 4 =
  18. 18.29 × 4 =
  19. 19.13 × 4 =
  20. 20.15 × 4 =
  21. 21.17 × 4 =
  22. 22.54 × 4 =
  23. 23.28 × 4 =
  24. 24.37 × 4 =
  25. 25.6 × 4 =
  26. 26.47 × 4 =
  27. 27.32 × 4 =
  28. 28.41 × 4 =
  29. 29.14 × 4 =
  30. 30.20 × 4 =
  31. 31.8 × 4 =
  32. 32.9 × 4 =
  33. 33.35 × 4 =
  34. 34.49 × 4 =
  35. 35.55 × 4 =
  36. 36.10 × 4 =
  37. 37.24 × 4 =
  38. 38.34 × 4 =
  39. 39.36 × 4 =
  40. 40.56 × 4 =

Answer key

  1. 28
  2. 132
  3. 232
  4. 208
  5. 192
  6. 160
  7. 64
  8. 176
  9. 172
  10. 44
  11. 168
  12. 152
  13. 72
  14. 124
  15. 76
  16. 236
  17. 92
  18. 116
  19. 52
  20. 60
  21. 68
  22. 216
  23. 112
  24. 148
  25. 24
  26. 188
  27. 128
  28. 164
  29. 56
  30. 80
  31. 32
  32. 36
  33. 140
  34. 196
  35. 220
  36. 40
  37. 96
  38. 136
  39. 144
  40. 224

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