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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 69 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.20 × 4 =
  2. 2.29 × 4 =
  3. 3.43 × 4 =
  4. 4.50 × 4 =
  5. 5.8 × 4 =
  6. 6.41 × 4 =
  7. 7.55 × 4 =
  8. 8.11 × 4 =
  9. 9.24 × 4 =
  10. 10.18 × 4 =
  11. 11.14 × 4 =
  12. 12.6 × 4 =
  13. 13.52 × 4 =
  14. 14.57 × 4 =
  15. 15.36 × 4 =
  16. 16.38 × 4 =
  17. 17.10 × 4 =
  18. 18.45 × 4 =
  19. 19.15 × 4 =
  20. 20.30 × 4 =
  21. 21.19 × 4 =
  22. 22.42 × 4 =
  23. 23.47 × 4 =
  24. 24.35 × 4 =
  25. 25.54 × 4 =
  26. 26.13 × 4 =
  27. 27.28 × 4 =
  28. 28.48 × 4 =
  29. 29.49 × 4 =
  30. 30.37 × 4 =
  31. 31.53 × 4 =
  32. 32.9 × 4 =
  33. 33.40 × 4 =
  34. 34.7 × 4 =
  35. 35.22 × 4 =
  36. 36.58 × 4 =
  37. 37.27 × 4 =
  38. 38.25 × 4 =
  39. 39.12 × 4 =
  40. 40.44 × 4 =

Answer key

  1. 80
  2. 116
  3. 172
  4. 200
  5. 32
  6. 164
  7. 220
  8. 44
  9. 96
  10. 72
  11. 56
  12. 24
  13. 208
  14. 228
  15. 144
  16. 152
  17. 40
  18. 180
  19. 60
  20. 120
  21. 76
  22. 168
  23. 188
  24. 140
  25. 216
  26. 52
  27. 112
  28. 192
  29. 196
  30. 148
  31. 212
  32. 36
  33. 160
  34. 28
  35. 88
  36. 232
  37. 108
  38. 100
  39. 48
  40. 176

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