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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 700 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.22 × 4 =
  2. 2.28 × 4 =
  3. 3.6 × 4 =
  4. 4.40 × 4 =
  5. 5.50 × 4 =
  6. 6.27 × 4 =
  7. 7.23 × 4 =
  8. 8.60 × 4 =
  9. 9.41 × 4 =
  10. 10.55 × 4 =
  11. 11.44 × 4 =
  12. 12.19 × 4 =
  13. 13.16 × 4 =
  14. 14.54 × 4 =
  15. 15.13 × 4 =
  16. 16.8 × 4 =
  17. 17.56 × 4 =
  18. 18.51 × 4 =
  19. 19.24 × 4 =
  20. 20.58 × 4 =
  21. 21.36 × 4 =
  22. 22.11 × 4 =
  23. 23.34 × 4 =
  24. 24.42 × 4 =
  25. 25.33 × 4 =
  26. 26.21 × 4 =
  27. 27.47 × 4 =
  28. 28.59 × 4 =
  29. 29.9 × 4 =
  30. 30.25 × 4 =
  31. 31.15 × 4 =
  32. 32.39 × 4 =
  33. 33.32 × 4 =
  34. 34.49 × 4 =
  35. 35.43 × 4 =
  36. 36.38 × 4 =
  37. 37.48 × 4 =
  38. 38.29 × 4 =
  39. 39.57 × 4 =
  40. 40.7 × 4 =

Answer key

  1. 88
  2. 112
  3. 24
  4. 160
  5. 200
  6. 108
  7. 92
  8. 240
  9. 164
  10. 220
  11. 176
  12. 76
  13. 64
  14. 216
  15. 52
  16. 32
  17. 224
  18. 204
  19. 96
  20. 232
  21. 144
  22. 44
  23. 136
  24. 168
  25. 132
  26. 84
  27. 188
  28. 236
  29. 36
  30. 100
  31. 60
  32. 156
  33. 128
  34. 196
  35. 172
  36. 152
  37. 192
  38. 116
  39. 228
  40. 28

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