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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 285 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.37 × 4 =
  2. 2.19 × 4 =
  3. 3.24 × 4 =
  4. 4.50 × 4 =
  5. 5.8 × 4 =
  6. 6.34 × 4 =
  7. 7.38 × 4 =
  8. 8.47 × 4 =
  9. 9.17 × 4 =
  10. 10.60 × 4 =
  11. 11.53 × 4 =
  12. 12.14 × 4 =
  13. 13.27 × 4 =
  14. 14.21 × 4 =
  15. 15.59 × 4 =
  16. 16.29 × 4 =
  17. 17.20 × 4 =
  18. 18.43 × 4 =
  19. 19.13 × 4 =
  20. 20.6 × 4 =
  21. 21.31 × 4 =
  22. 22.45 × 4 =
  23. 23.15 × 4 =
  24. 24.7 × 4 =
  25. 25.48 × 4 =
  26. 26.16 × 4 =
  27. 27.28 × 4 =
  28. 28.54 × 4 =
  29. 29.57 × 4 =
  30. 30.22 × 4 =
  31. 31.44 × 4 =
  32. 32.41 × 4 =
  33. 33.18 × 4 =
  34. 34.11 × 4 =
  35. 35.25 × 4 =
  36. 36.40 × 4 =
  37. 37.30 × 4 =
  38. 38.56 × 4 =
  39. 39.9 × 4 =
  40. 40.10 × 4 =

Answer key

  1. 148
  2. 76
  3. 96
  4. 200
  5. 32
  6. 136
  7. 152
  8. 188
  9. 68
  10. 240
  11. 212
  12. 56
  13. 108
  14. 84
  15. 236
  16. 116
  17. 80
  18. 172
  19. 52
  20. 24
  21. 124
  22. 180
  23. 60
  24. 28
  25. 192
  26. 64
  27. 112
  28. 216
  29. 228
  30. 88
  31. 176
  32. 164
  33. 72
  34. 44
  35. 100
  36. 160
  37. 120
  38. 224
  39. 36
  40. 40

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