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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 89 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.34 × 4 =
  2. 2.9 × 4 =
  3. 3.42 × 4 =
  4. 4.29 × 4 =
  5. 5.11 × 4 =
  6. 6.37 × 4 =
  7. 7.60 × 4 =
  8. 8.22 × 4 =
  9. 9.10 × 4 =
  10. 10.38 × 4 =
  11. 11.7 × 4 =
  12. 12.43 × 4 =
  13. 13.56 × 4 =
  14. 14.55 × 4 =
  15. 15.32 × 4 =
  16. 16.26 × 4 =
  17. 17.40 × 4 =
  18. 18.25 × 4 =
  19. 19.27 × 4 =
  20. 20.49 × 4 =
  21. 21.16 × 4 =
  22. 22.41 × 4 =
  23. 23.30 × 4 =
  24. 24.17 × 4 =
  25. 25.39 × 4 =
  26. 26.53 × 4 =
  27. 27.18 × 4 =
  28. 28.57 × 4 =
  29. 29.8 × 4 =
  30. 30.6 × 4 =
  31. 31.51 × 4 =
  32. 32.24 × 4 =
  33. 33.50 × 4 =
  34. 34.54 × 4 =
  35. 35.36 × 4 =
  36. 36.20 × 4 =
  37. 37.35 × 4 =
  38. 38.59 × 4 =
  39. 39.21 × 4 =
  40. 40.47 × 4 =

Answer key

  1. 136
  2. 36
  3. 168
  4. 116
  5. 44
  6. 148
  7. 240
  8. 88
  9. 40
  10. 152
  11. 28
  12. 172
  13. 224
  14. 220
  15. 128
  16. 104
  17. 160
  18. 100
  19. 108
  20. 196
  21. 64
  22. 164
  23. 120
  24. 68
  25. 156
  26. 212
  27. 72
  28. 228
  29. 32
  30. 24
  31. 204
  32. 96
  33. 200
  34. 216
  35. 144
  36. 80
  37. 140
  38. 236
  39. 84
  40. 188

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