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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 680 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.51 × 4 =
  2. 2.6 × 4 =
  3. 3.42 × 4 =
  4. 4.31 × 4 =
  5. 5.39 × 4 =
  6. 6.45 × 4 =
  7. 7.41 × 4 =
  8. 8.19 × 4 =
  9. 9.49 × 4 =
  10. 10.13 × 4 =
  11. 11.21 × 4 =
  12. 12.37 × 4 =
  13. 13.57 × 4 =
  14. 14.56 × 4 =
  15. 15.48 × 4 =
  16. 16.14 × 4 =
  17. 17.60 × 4 =
  18. 18.23 × 4 =
  19. 19.55 × 4 =
  20. 20.54 × 4 =
  21. 21.35 × 4 =
  22. 22.34 × 4 =
  23. 23.24 × 4 =
  24. 24.22 × 4 =
  25. 25.7 × 4 =
  26. 26.18 × 4 =
  27. 27.33 × 4 =
  28. 28.36 × 4 =
  29. 29.15 × 4 =
  30. 30.43 × 4 =
  31. 31.59 × 4 =
  32. 32.32 × 4 =
  33. 33.52 × 4 =
  34. 34.26 × 4 =
  35. 35.10 × 4 =
  36. 36.20 × 4 =
  37. 37.17 × 4 =
  38. 38.12 × 4 =
  39. 39.47 × 4 =
  40. 40.8 × 4 =

Answer key

  1. 204
  2. 24
  3. 168
  4. 124
  5. 156
  6. 180
  7. 164
  8. 76
  9. 196
  10. 52
  11. 84
  12. 148
  13. 228
  14. 224
  15. 192
  16. 56
  17. 240
  18. 92
  19. 220
  20. 216
  21. 140
  22. 136
  23. 96
  24. 88
  25. 28
  26. 72
  27. 132
  28. 144
  29. 60
  30. 172
  31. 236
  32. 128
  33. 208
  34. 104
  35. 40
  36. 80
  37. 68
  38. 48
  39. 188
  40. 32

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