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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 269 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.43 × 4 =
  2. 2.51 × 4 =
  3. 3.8 × 4 =
  4. 4.6 × 4 =
  5. 5.14 × 4 =
  6. 6.29 × 4 =
  7. 7.40 × 4 =
  8. 8.26 × 4 =
  9. 9.24 × 4 =
  10. 10.45 × 4 =
  11. 11.42 × 4 =
  12. 12.56 × 4 =
  13. 13.10 × 4 =
  14. 14.9 × 4 =
  15. 15.59 × 4 =
  16. 16.18 × 4 =
  17. 17.13 × 4 =
  18. 18.48 × 4 =
  19. 19.27 × 4 =
  20. 20.57 × 4 =
  21. 21.35 × 4 =
  22. 22.31 × 4 =
  23. 23.33 × 4 =
  24. 24.58 × 4 =
  25. 25.41 × 4 =
  26. 26.30 × 4 =
  27. 27.53 × 4 =
  28. 28.37 × 4 =
  29. 29.22 × 4 =
  30. 30.52 × 4 =
  31. 31.38 × 4 =
  32. 32.39 × 4 =
  33. 33.32 × 4 =
  34. 34.46 × 4 =
  35. 35.23 × 4 =
  36. 36.12 × 4 =
  37. 37.34 × 4 =
  38. 38.16 × 4 =
  39. 39.17 × 4 =
  40. 40.25 × 4 =

Answer key

  1. 172
  2. 204
  3. 32
  4. 24
  5. 56
  6. 116
  7. 160
  8. 104
  9. 96
  10. 180
  11. 168
  12. 224
  13. 40
  14. 36
  15. 236
  16. 72
  17. 52
  18. 192
  19. 108
  20. 228
  21. 140
  22. 124
  23. 132
  24. 232
  25. 164
  26. 120
  27. 212
  28. 148
  29. 88
  30. 208
  31. 152
  32. 156
  33. 128
  34. 184
  35. 92
  36. 48
  37. 136
  38. 64
  39. 68
  40. 100

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