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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 208 · 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. 2.33 × 4 =
  3. 3.8 × 4 =
  4. 4.20 × 4 =
  5. 5.13 × 4 =
  6. 6.55 × 4 =
  7. 7.19 × 4 =
  8. 8.44 × 4 =
  9. 9.36 × 4 =
  10. 10.31 × 4 =
  11. 11.12 × 4 =
  12. 12.29 × 4 =
  13. 13.14 × 4 =
  14. 14.15 × 4 =
  15. 15.41 × 4 =
  16. 16.38 × 4 =
  17. 17.24 × 4 =
  18. 18.52 × 4 =
  19. 19.26 × 4 =
  20. 20.58 × 4 =
  21. 21.34 × 4 =
  22. 22.21 × 4 =
  23. 23.54 × 4 =
  24. 24.7 × 4 =
  25. 25.16 × 4 =
  26. 26.47 × 4 =
  27. 27.53 × 4 =
  28. 28.11 × 4 =
  29. 29.40 × 4 =
  30. 30.56 × 4 =
  31. 31.60 × 4 =
  32. 32.51 × 4 =
  33. 33.27 × 4 =
  34. 34.35 × 4 =
  35. 35.10 × 4 =
  36. 36.45 × 4 =
  37. 37.17 × 4 =
  38. 38.48 × 4 =
  39. 39.57 × 4 =
  40. 40.22 × 4 =

Answer key

  1. 172
  2. 132
  3. 32
  4. 80
  5. 52
  6. 220
  7. 76
  8. 176
  9. 144
  10. 124
  11. 48
  12. 116
  13. 56
  14. 60
  15. 164
  16. 152
  17. 96
  18. 208
  19. 104
  20. 232
  21. 136
  22. 84
  23. 216
  24. 28
  25. 64
  26. 188
  27. 212
  28. 44
  29. 160
  30. 224
  31. 240
  32. 204
  33. 108
  34. 140
  35. 40
  36. 180
  37. 68
  38. 192
  39. 228
  40. 88

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