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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 530 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.21 × 4 =
  2. 2.54 × 4 =
  3. 3.44 × 4 =
  4. 4.46 × 4 =
  5. 5.35 × 4 =
  6. 6.12 × 4 =
  7. 7.10 × 4 =
  8. 8.20 × 4 =
  9. 9.58 × 4 =
  10. 10.41 × 4 =
  11. 11.23 × 4 =
  12. 12.7 × 4 =
  13. 13.29 × 4 =
  14. 14.57 × 4 =
  15. 15.14 × 4 =
  16. 16.38 × 4 =
  17. 17.51 × 4 =
  18. 18.48 × 4 =
  19. 19.34 × 4 =
  20. 20.36 × 4 =
  21. 21.17 × 4 =
  22. 22.22 × 4 =
  23. 23.32 × 4 =
  24. 24.9 × 4 =
  25. 25.25 × 4 =
  26. 26.16 × 4 =
  27. 27.42 × 4 =
  28. 28.15 × 4 =
  29. 29.52 × 4 =
  30. 30.39 × 4 =
  31. 31.6 × 4 =
  32. 32.8 × 4 =
  33. 33.26 × 4 =
  34. 34.37 × 4 =
  35. 35.13 × 4 =
  36. 36.49 × 4 =
  37. 37.56 × 4 =
  38. 38.28 × 4 =
  39. 39.55 × 4 =
  40. 40.31 × 4 =

Answer key

  1. 84
  2. 216
  3. 176
  4. 184
  5. 140
  6. 48
  7. 40
  8. 80
  9. 232
  10. 164
  11. 92
  12. 28
  13. 116
  14. 228
  15. 56
  16. 152
  17. 204
  18. 192
  19. 136
  20. 144
  21. 68
  22. 88
  23. 128
  24. 36
  25. 100
  26. 64
  27. 168
  28. 60
  29. 208
  30. 156
  31. 24
  32. 32
  33. 104
  34. 148
  35. 52
  36. 196
  37. 224
  38. 112
  39. 220
  40. 124

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