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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 336 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.57 × 4 =
  2. 2.31 × 4 =
  3. 3.17 × 4 =
  4. 4.33 × 4 =
  5. 5.6 × 4 =
  6. 6.16 × 4 =
  7. 7.11 × 4 =
  8. 8.40 × 4 =
  9. 9.7 × 4 =
  10. 10.23 × 4 =
  11. 11.21 × 4 =
  12. 12.13 × 4 =
  13. 13.58 × 4 =
  14. 14.46 × 4 =
  15. 15.34 × 4 =
  16. 16.22 × 4 =
  17. 17.9 × 4 =
  18. 18.42 × 4 =
  19. 19.48 × 4 =
  20. 20.28 × 4 =
  21. 21.54 × 4 =
  22. 22.12 × 4 =
  23. 23.60 × 4 =
  24. 24.45 × 4 =
  25. 25.50 × 4 =
  26. 26.39 × 4 =
  27. 27.41 × 4 =
  28. 28.29 × 4 =
  29. 29.27 × 4 =
  30. 30.56 × 4 =
  31. 31.43 × 4 =
  32. 32.26 × 4 =
  33. 33.55 × 4 =
  34. 34.14 × 4 =
  35. 35.8 × 4 =
  36. 36.52 × 4 =
  37. 37.38 × 4 =
  38. 38.24 × 4 =
  39. 39.35 × 4 =
  40. 40.44 × 4 =

Answer key

  1. 228
  2. 124
  3. 68
  4. 132
  5. 24
  6. 64
  7. 44
  8. 160
  9. 28
  10. 92
  11. 84
  12. 52
  13. 232
  14. 184
  15. 136
  16. 88
  17. 36
  18. 168
  19. 192
  20. 112
  21. 216
  22. 48
  23. 240
  24. 180
  25. 200
  26. 156
  27. 164
  28. 116
  29. 108
  30. 224
  31. 172
  32. 104
  33. 220
  34. 56
  35. 32
  36. 208
  37. 152
  38. 96
  39. 140
  40. 176

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