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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 124 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.25 × 4 =
  2. 2.51 × 4 =
  3. 3.20 × 4 =
  4. 4.44 × 4 =
  5. 5.29 × 4 =
  6. 6.57 × 4 =
  7. 7.17 × 4 =
  8. 8.53 × 4 =
  9. 9.9 × 4 =
  10. 10.45 × 4 =
  11. 11.21 × 4 =
  12. 12.34 × 4 =
  13. 13.37 × 4 =
  14. 14.39 × 4 =
  15. 15.49 × 4 =
  16. 16.46 × 4 =
  17. 17.40 × 4 =
  18. 18.24 × 4 =
  19. 19.60 × 4 =
  20. 20.54 × 4 =
  21. 21.15 × 4 =
  22. 22.12 × 4 =
  23. 23.38 × 4 =
  24. 24.13 × 4 =
  25. 25.28 × 4 =
  26. 26.47 × 4 =
  27. 27.59 × 4 =
  28. 28.23 × 4 =
  29. 29.31 × 4 =
  30. 30.43 × 4 =
  31. 31.10 × 4 =
  32. 32.32 × 4 =
  33. 33.52 × 4 =
  34. 34.26 × 4 =
  35. 35.18 × 4 =
  36. 36.56 × 4 =
  37. 37.27 × 4 =
  38. 38.30 × 4 =
  39. 39.55 × 4 =
  40. 40.7 × 4 =

Answer key

  1. 100
  2. 204
  3. 80
  4. 176
  5. 116
  6. 228
  7. 68
  8. 212
  9. 36
  10. 180
  11. 84
  12. 136
  13. 148
  14. 156
  15. 196
  16. 184
  17. 160
  18. 96
  19. 240
  20. 216
  21. 60
  22. 48
  23. 152
  24. 52
  25. 112
  26. 188
  27. 236
  28. 92
  29. 124
  30. 172
  31. 40
  32. 128
  33. 208
  34. 104
  35. 72
  36. 224
  37. 108
  38. 120
  39. 220
  40. 28

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