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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 222 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.55 × 4 =
  2. 2.43 × 4 =
  3. 3.29 × 4 =
  4. 4.47 × 4 =
  5. 5.17 × 4 =
  6. 6.25 × 4 =
  7. 7.53 × 4 =
  8. 8.46 × 4 =
  9. 9.34 × 4 =
  10. 10.39 × 4 =
  11. 11.10 × 4 =
  12. 12.32 × 4 =
  13. 13.44 × 4 =
  14. 14.45 × 4 =
  15. 15.56 × 4 =
  16. 16.48 × 4 =
  17. 17.7 × 4 =
  18. 18.21 × 4 =
  19. 19.27 × 4 =
  20. 20.20 × 4 =
  21. 21.6 × 4 =
  22. 22.58 × 4 =
  23. 23.37 × 4 =
  24. 24.23 × 4 =
  25. 25.57 × 4 =
  26. 26.41 × 4 =
  27. 27.60 × 4 =
  28. 28.12 × 4 =
  29. 29.9 × 4 =
  30. 30.51 × 4 =
  31. 31.40 × 4 =
  32. 32.8 × 4 =
  33. 33.54 × 4 =
  34. 34.36 × 4 =
  35. 35.16 × 4 =
  36. 36.33 × 4 =
  37. 37.13 × 4 =
  38. 38.42 × 4 =
  39. 39.15 × 4 =
  40. 40.38 × 4 =

Answer key

  1. 220
  2. 172
  3. 116
  4. 188
  5. 68
  6. 100
  7. 212
  8. 184
  9. 136
  10. 156
  11. 40
  12. 128
  13. 176
  14. 180
  15. 224
  16. 192
  17. 28
  18. 84
  19. 108
  20. 80
  21. 24
  22. 232
  23. 148
  24. 92
  25. 228
  26. 164
  27. 240
  28. 48
  29. 36
  30. 204
  31. 160
  32. 32
  33. 216
  34. 144
  35. 64
  36. 132
  37. 52
  38. 168
  39. 60
  40. 152

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