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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 526 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.21 × 4 =
  2. 2.29 × 4 =
  3. 3.31 × 4 =
  4. 4.9 × 4 =
  5. 5.22 × 4 =
  6. 6.39 × 4 =
  7. 7.60 × 4 =
  8. 8.43 × 4 =
  9. 9.48 × 4 =
  10. 10.59 × 4 =
  11. 11.30 × 4 =
  12. 12.10 × 4 =
  13. 13.47 × 4 =
  14. 14.45 × 4 =
  15. 15.50 × 4 =
  16. 16.54 × 4 =
  17. 17.53 × 4 =
  18. 18.38 × 4 =
  19. 19.37 × 4 =
  20. 20.26 × 4 =
  21. 21.49 × 4 =
  22. 22.11 × 4 =
  23. 23.46 × 4 =
  24. 24.17 × 4 =
  25. 25.33 × 4 =
  26. 26.13 × 4 =
  27. 27.15 × 4 =
  28. 28.19 × 4 =
  29. 29.36 × 4 =
  30. 30.24 × 4 =
  31. 31.7 × 4 =
  32. 32.52 × 4 =
  33. 33.42 × 4 =
  34. 34.16 × 4 =
  35. 35.28 × 4 =
  36. 36.32 × 4 =
  37. 37.55 × 4 =
  38. 38.6 × 4 =
  39. 39.57 × 4 =
  40. 40.51 × 4 =

Answer key

  1. 84
  2. 116
  3. 124
  4. 36
  5. 88
  6. 156
  7. 240
  8. 172
  9. 192
  10. 236
  11. 120
  12. 40
  13. 188
  14. 180
  15. 200
  16. 216
  17. 212
  18. 152
  19. 148
  20. 104
  21. 196
  22. 44
  23. 184
  24. 68
  25. 132
  26. 52
  27. 60
  28. 76
  29. 144
  30. 96
  31. 28
  32. 208
  33. 168
  34. 64
  35. 112
  36. 128
  37. 220
  38. 24
  39. 228
  40. 204

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