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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 784 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.42 × 4 =
  2. 2.60 × 4 =
  3. 3.48 × 4 =
  4. 4.38 × 4 =
  5. 5.34 × 4 =
  6. 6.41 × 4 =
  7. 7.30 × 4 =
  8. 8.9 × 4 =
  9. 9.27 × 4 =
  10. 10.55 × 4 =
  11. 11.7 × 4 =
  12. 12.31 × 4 =
  13. 13.47 × 4 =
  14. 14.37 × 4 =
  15. 15.35 × 4 =
  16. 16.8 × 4 =
  17. 17.22 × 4 =
  18. 18.15 × 4 =
  19. 19.39 × 4 =
  20. 20.21 × 4 =
  21. 21.54 × 4 =
  22. 22.44 × 4 =
  23. 23.36 × 4 =
  24. 24.11 × 4 =
  25. 25.10 × 4 =
  26. 26.20 × 4 =
  27. 27.26 × 4 =
  28. 28.17 × 4 =
  29. 29.6 × 4 =
  30. 30.29 × 4 =
  31. 31.52 × 4 =
  32. 32.53 × 4 =
  33. 33.50 × 4 =
  34. 34.43 × 4 =
  35. 35.57 × 4 =
  36. 36.49 × 4 =
  37. 37.18 × 4 =
  38. 38.16 × 4 =
  39. 39.45 × 4 =
  40. 40.32 × 4 =

Answer key

  1. 168
  2. 240
  3. 192
  4. 152
  5. 136
  6. 164
  7. 120
  8. 36
  9. 108
  10. 220
  11. 28
  12. 124
  13. 188
  14. 148
  15. 140
  16. 32
  17. 88
  18. 60
  19. 156
  20. 84
  21. 216
  22. 176
  23. 144
  24. 44
  25. 40
  26. 80
  27. 104
  28. 68
  29. 24
  30. 116
  31. 208
  32. 212
  33. 200
  34. 172
  35. 228
  36. 196
  37. 72
  38. 64
  39. 180
  40. 128

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