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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 870 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.40 × 4 =
  2. 2.8 × 4 =
  3. 3.56 × 4 =
  4. 4.42 × 4 =
  5. 5.54 × 4 =
  6. 6.10 × 4 =
  7. 7.50 × 4 =
  8. 8.16 × 4 =
  9. 9.59 × 4 =
  10. 10.60 × 4 =
  11. 11.48 × 4 =
  12. 12.55 × 4 =
  13. 13.57 × 4 =
  14. 14.22 × 4 =
  15. 15.33 × 4 =
  16. 16.35 × 4 =
  17. 17.49 × 4 =
  18. 18.15 × 4 =
  19. 19.58 × 4 =
  20. 20.14 × 4 =
  21. 21.41 × 4 =
  22. 22.27 × 4 =
  23. 23.13 × 4 =
  24. 24.38 × 4 =
  25. 25.51 × 4 =
  26. 26.11 × 4 =
  27. 27.34 × 4 =
  28. 28.12 × 4 =
  29. 29.39 × 4 =
  30. 30.23 × 4 =
  31. 31.7 × 4 =
  32. 32.24 × 4 =
  33. 33.20 × 4 =
  34. 34.53 × 4 =
  35. 35.32 × 4 =
  36. 36.37 × 4 =
  37. 37.31 × 4 =
  38. 38.36 × 4 =
  39. 39.17 × 4 =
  40. 40.6 × 4 =

Answer key

  1. 160
  2. 32
  3. 224
  4. 168
  5. 216
  6. 40
  7. 200
  8. 64
  9. 236
  10. 240
  11. 192
  12. 220
  13. 228
  14. 88
  15. 132
  16. 140
  17. 196
  18. 60
  19. 232
  20. 56
  21. 164
  22. 108
  23. 52
  24. 152
  25. 204
  26. 44
  27. 136
  28. 48
  29. 156
  30. 92
  31. 28
  32. 96
  33. 80
  34. 212
  35. 128
  36. 148
  37. 124
  38. 144
  39. 68
  40. 24

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