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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 922 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.35 × 4 =
  2. 2.16 × 4 =
  3. 3.59 × 4 =
  4. 4.32 × 4 =
  5. 5.22 × 4 =
  6. 6.28 × 4 =
  7. 7.42 × 4 =
  8. 8.6 × 4 =
  9. 9.55 × 4 =
  10. 10.17 × 4 =
  11. 11.58 × 4 =
  12. 12.34 × 4 =
  13. 13.18 × 4 =
  14. 14.56 × 4 =
  15. 15.38 × 4 =
  16. 16.25 × 4 =
  17. 17.52 × 4 =
  18. 18.60 × 4 =
  19. 19.51 × 4 =
  20. 20.57 × 4 =
  21. 21.8 × 4 =
  22. 22.33 × 4 =
  23. 23.45 × 4 =
  24. 24.37 × 4 =
  25. 25.15 × 4 =
  26. 26.21 × 4 =
  27. 27.11 × 4 =
  28. 28.27 × 4 =
  29. 29.20 × 4 =
  30. 30.10 × 4 =
  31. 31.26 × 4 =
  32. 32.9 × 4 =
  33. 33.24 × 4 =
  34. 34.43 × 4 =
  35. 35.39 × 4 =
  36. 36.40 × 4 =
  37. 37.44 × 4 =
  38. 38.47 × 4 =
  39. 39.53 × 4 =
  40. 40.41 × 4 =

Answer key

  1. 140
  2. 64
  3. 236
  4. 128
  5. 88
  6. 112
  7. 168
  8. 24
  9. 220
  10. 68
  11. 232
  12. 136
  13. 72
  14. 224
  15. 152
  16. 100
  17. 208
  18. 240
  19. 204
  20. 228
  21. 32
  22. 132
  23. 180
  24. 148
  25. 60
  26. 84
  27. 44
  28. 108
  29. 80
  30. 40
  31. 104
  32. 36
  33. 96
  34. 172
  35. 156
  36. 160
  37. 176
  38. 188
  39. 212
  40. 164

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