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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 323 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.6 × 4 =
  2. 2.10 × 4 =
  3. 3.45 × 4 =
  4. 4.32 × 4 =
  5. 5.20 × 4 =
  6. 6.26 × 4 =
  7. 7.15 × 4 =
  8. 8.21 × 4 =
  9. 9.52 × 4 =
  10. 10.9 × 4 =
  11. 11.36 × 4 =
  12. 12.23 × 4 =
  13. 13.28 × 4 =
  14. 14.56 × 4 =
  15. 15.46 × 4 =
  16. 16.11 × 4 =
  17. 17.35 × 4 =
  18. 18.51 × 4 =
  19. 19.54 × 4 =
  20. 20.8 × 4 =
  21. 21.13 × 4 =
  22. 22.57 × 4 =
  23. 23.49 × 4 =
  24. 24.19 × 4 =
  25. 25.34 × 4 =
  26. 26.42 × 4 =
  27. 27.43 × 4 =
  28. 28.37 × 4 =
  29. 29.47 × 4 =
  30. 30.18 × 4 =
  31. 31.12 × 4 =
  32. 32.41 × 4 =
  33. 33.17 × 4 =
  34. 34.30 × 4 =
  35. 35.24 × 4 =
  36. 36.7 × 4 =
  37. 37.60 × 4 =
  38. 38.29 × 4 =
  39. 39.53 × 4 =
  40. 40.50 × 4 =

Answer key

  1. 24
  2. 40
  3. 180
  4. 128
  5. 80
  6. 104
  7. 60
  8. 84
  9. 208
  10. 36
  11. 144
  12. 92
  13. 112
  14. 224
  15. 184
  16. 44
  17. 140
  18. 204
  19. 216
  20. 32
  21. 52
  22. 228
  23. 196
  24. 76
  25. 136
  26. 168
  27. 172
  28. 148
  29. 188
  30. 72
  31. 48
  32. 164
  33. 68
  34. 120
  35. 96
  36. 28
  37. 240
  38. 116
  39. 212
  40. 200

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