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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 823 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.13 × 4 =
  2. 2.10 × 4 =
  3. 3.37 × 4 =
  4. 4.55 × 4 =
  5. 5.23 × 4 =
  6. 6.9 × 4 =
  7. 7.27 × 4 =
  8. 8.24 × 4 =
  9. 9.34 × 4 =
  10. 10.32 × 4 =
  11. 11.38 × 4 =
  12. 12.57 × 4 =
  13. 13.28 × 4 =
  14. 14.36 × 4 =
  15. 15.22 × 4 =
  16. 16.30 × 4 =
  17. 17.39 × 4 =
  18. 18.14 × 4 =
  19. 19.12 × 4 =
  20. 20.49 × 4 =
  21. 21.52 × 4 =
  22. 22.45 × 4 =
  23. 23.11 × 4 =
  24. 24.53 × 4 =
  25. 25.50 × 4 =
  26. 26.17 × 4 =
  27. 27.35 × 4 =
  28. 28.43 × 4 =
  29. 29.15 × 4 =
  30. 30.48 × 4 =
  31. 31.29 × 4 =
  32. 32.59 × 4 =
  33. 33.8 × 4 =
  34. 34.44 × 4 =
  35. 35.56 × 4 =
  36. 36.19 × 4 =
  37. 37.6 × 4 =
  38. 38.33 × 4 =
  39. 39.10 × 4 =
  40. 40.18 × 4 =

Answer key

  1. 52
  2. 40
  3. 148
  4. 220
  5. 92
  6. 36
  7. 108
  8. 96
  9. 136
  10. 128
  11. 152
  12. 228
  13. 112
  14. 144
  15. 88
  16. 120
  17. 156
  18. 56
  19. 48
  20. 196
  21. 208
  22. 180
  23. 44
  24. 212
  25. 200
  26. 68
  27. 140
  28. 172
  29. 60
  30. 192
  31. 116
  32. 236
  33. 32
  34. 176
  35. 224
  36. 76
  37. 24
  38. 132
  39. 40
  40. 72

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