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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 68 · 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. 2.55 × 4 =
  3. 3.29 × 4 =
  4. 4.15 × 4 =
  5. 5.20 × 4 =
  6. 6.34 × 4 =
  7. 7.17 × 4 =
  8. 8.16 × 4 =
  9. 9.31 × 4 =
  10. 10.14 × 4 =
  11. 11.32 × 4 =
  12. 12.43 × 4 =
  13. 13.24 × 4 =
  14. 14.18 × 4 =
  15. 15.48 × 4 =
  16. 16.38 × 4 =
  17. 17.12 × 4 =
  18. 18.53 × 4 =
  19. 19.44 × 4 =
  20. 20.36 × 4 =
  21. 21.11 × 4 =
  22. 22.8 × 4 =
  23. 23.30 × 4 =
  24. 24.41 × 4 =
  25. 25.13 × 4 =
  26. 26.26 × 4 =
  27. 27.50 × 4 =
  28. 28.28 × 4 =
  29. 29.49 × 4 =
  30. 30.51 × 4 =
  31. 31.56 × 4 =
  32. 32.10 × 4 =
  33. 33.27 × 4 =
  34. 34.46 × 4 =
  35. 35.54 × 4 =
  36. 36.6 × 4 =
  37. 37.60 × 4 =
  38. 38.39 × 4 =
  39. 39.42 × 4 =
  40. 40.37 × 4 =

Answer key

  1. 228
  2. 220
  3. 116
  4. 60
  5. 80
  6. 136
  7. 68
  8. 64
  9. 124
  10. 56
  11. 128
  12. 172
  13. 96
  14. 72
  15. 192
  16. 152
  17. 48
  18. 212
  19. 176
  20. 144
  21. 44
  22. 32
  23. 120
  24. 164
  25. 52
  26. 104
  27. 200
  28. 112
  29. 196
  30. 204
  31. 224
  32. 40
  33. 108
  34. 184
  35. 216
  36. 24
  37. 240
  38. 156
  39. 168
  40. 148

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