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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 47 · 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. 2.22 × 4 =
  3. 3.57 × 4 =
  4. 4.50 × 4 =
  5. 5.15 × 4 =
  6. 6.19 × 4 =
  7. 7.53 × 4 =
  8. 8.27 × 4 =
  9. 9.55 × 4 =
  10. 10.51 × 4 =
  11. 11.56 × 4 =
  12. 12.34 × 4 =
  13. 13.54 × 4 =
  14. 14.13 × 4 =
  15. 15.46 × 4 =
  16. 16.59 × 4 =
  17. 17.60 × 4 =
  18. 18.18 × 4 =
  19. 19.8 × 4 =
  20. 20.44 × 4 =
  21. 21.49 × 4 =
  22. 22.31 × 4 =
  23. 23.33 × 4 =
  24. 24.43 × 4 =
  25. 25.23 × 4 =
  26. 26.17 × 4 =
  27. 27.26 × 4 =
  28. 28.12 × 4 =
  29. 29.24 × 4 =
  30. 30.58 × 4 =
  31. 31.47 × 4 =
  32. 32.37 × 4 =
  33. 33.40 × 4 =
  34. 34.42 × 4 =
  35. 35.30 × 4 =
  36. 36.21 × 4 =
  37. 37.39 × 4 =
  38. 38.52 × 4 =
  39. 39.45 × 4 =
  40. 40.28 × 4 =

Answer key

  1. 100
  2. 88
  3. 228
  4. 200
  5. 60
  6. 76
  7. 212
  8. 108
  9. 220
  10. 204
  11. 224
  12. 136
  13. 216
  14. 52
  15. 184
  16. 236
  17. 240
  18. 72
  19. 32
  20. 176
  21. 196
  22. 124
  23. 132
  24. 172
  25. 92
  26. 68
  27. 104
  28. 48
  29. 96
  30. 232
  31. 188
  32. 148
  33. 160
  34. 168
  35. 120
  36. 84
  37. 156
  38. 208
  39. 180
  40. 112

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