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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 97 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.43 × 4 =
  2. 2.10 × 4 =
  3. 3.20 × 4 =
  4. 4.6 × 4 =
  5. 5.27 × 4 =
  6. 6.54 × 4 =
  7. 7.29 × 4 =
  8. 8.42 × 4 =
  9. 9.22 × 4 =
  10. 10.40 × 4 =
  11. 11.48 × 4 =
  12. 12.15 × 4 =
  13. 13.36 × 4 =
  14. 14.51 × 4 =
  15. 15.16 × 4 =
  16. 16.56 × 4 =
  17. 17.45 × 4 =
  18. 18.50 × 4 =
  19. 19.30 × 4 =
  20. 20.57 × 4 =
  21. 21.35 × 4 =
  22. 22.19 × 4 =
  23. 23.39 × 4 =
  24. 24.44 × 4 =
  25. 25.24 × 4 =
  26. 26.12 × 4 =
  27. 27.28 × 4 =
  28. 28.52 × 4 =
  29. 29.33 × 4 =
  30. 30.11 × 4 =
  31. 31.46 × 4 =
  32. 32.47 × 4 =
  33. 33.17 × 4 =
  34. 34.49 × 4 =
  35. 35.26 × 4 =
  36. 36.13 × 4 =
  37. 37.14 × 4 =
  38. 38.58 × 4 =
  39. 39.41 × 4 =
  40. 40.8 × 4 =

Answer key

  1. 172
  2. 40
  3. 80
  4. 24
  5. 108
  6. 216
  7. 116
  8. 168
  9. 88
  10. 160
  11. 192
  12. 60
  13. 144
  14. 204
  15. 64
  16. 224
  17. 180
  18. 200
  19. 120
  20. 228
  21. 140
  22. 76
  23. 156
  24. 176
  25. 96
  26. 48
  27. 112
  28. 208
  29. 132
  30. 44
  31. 184
  32. 188
  33. 68
  34. 196
  35. 104
  36. 52
  37. 56
  38. 232
  39. 164
  40. 32

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