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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 431 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.36 × 4 =
  2. 2.25 × 4 =
  3. 3.46 × 4 =
  4. 4.59 × 4 =
  5. 5.35 × 4 =
  6. 6.19 × 4 =
  7. 7.32 × 4 =
  8. 8.20 × 4 =
  9. 9.58 × 4 =
  10. 10.13 × 4 =
  11. 11.54 × 4 =
  12. 12.56 × 4 =
  13. 13.33 × 4 =
  14. 14.18 × 4 =
  15. 15.6 × 4 =
  16. 16.60 × 4 =
  17. 17.8 × 4 =
  18. 18.15 × 4 =
  19. 19.53 × 4 =
  20. 20.57 × 4 =
  21. 21.24 × 4 =
  22. 22.16 × 4 =
  23. 23.50 × 4 =
  24. 24.41 × 4 =
  25. 25.47 × 4 =
  26. 26.45 × 4 =
  27. 27.48 × 4 =
  28. 28.14 × 4 =
  29. 29.37 × 4 =
  30. 30.28 × 4 =
  31. 31.44 × 4 =
  32. 32.31 × 4 =
  33. 33.23 × 4 =
  34. 34.7 × 4 =
  35. 35.38 × 4 =
  36. 36.11 × 4 =
  37. 37.52 × 4 =
  38. 38.40 × 4 =
  39. 39.39 × 4 =
  40. 40.10 × 4 =

Answer key

  1. 144
  2. 100
  3. 184
  4. 236
  5. 140
  6. 76
  7. 128
  8. 80
  9. 232
  10. 52
  11. 216
  12. 224
  13. 132
  14. 72
  15. 24
  16. 240
  17. 32
  18. 60
  19. 212
  20. 228
  21. 96
  22. 64
  23. 200
  24. 164
  25. 188
  26. 180
  27. 192
  28. 56
  29. 148
  30. 112
  31. 176
  32. 124
  33. 92
  34. 28
  35. 152
  36. 44
  37. 208
  38. 160
  39. 156
  40. 40

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