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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 623 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.19 × 4 =
  2. 2.30 × 4 =
  3. 3.13 × 4 =
  4. 4.40 × 4 =
  5. 5.57 × 4 =
  6. 6.44 × 4 =
  7. 7.54 × 4 =
  8. 8.36 × 4 =
  9. 9.29 × 4 =
  10. 10.27 × 4 =
  11. 11.8 × 4 =
  12. 12.45 × 4 =
  13. 13.18 × 4 =
  14. 14.10 × 4 =
  15. 15.50 × 4 =
  16. 16.56 × 4 =
  17. 17.20 × 4 =
  18. 18.15 × 4 =
  19. 19.24 × 4 =
  20. 20.51 × 4 =
  21. 21.41 × 4 =
  22. 22.38 × 4 =
  23. 23.16 × 4 =
  24. 24.37 × 4 =
  25. 25.11 × 4 =
  26. 26.14 × 4 =
  27. 27.35 × 4 =
  28. 28.52 × 4 =
  29. 29.34 × 4 =
  30. 30.12 × 4 =
  31. 31.9 × 4 =
  32. 32.46 × 4 =
  33. 33.53 × 4 =
  34. 34.47 × 4 =
  35. 35.49 × 4 =
  36. 36.33 × 4 =
  37. 37.23 × 4 =
  38. 38.48 × 4 =
  39. 39.55 × 4 =
  40. 40.7 × 4 =

Answer key

  1. 76
  2. 120
  3. 52
  4. 160
  5. 228
  6. 176
  7. 216
  8. 144
  9. 116
  10. 108
  11. 32
  12. 180
  13. 72
  14. 40
  15. 200
  16. 224
  17. 80
  18. 60
  19. 96
  20. 204
  21. 164
  22. 152
  23. 64
  24. 148
  25. 44
  26. 56
  27. 140
  28. 208
  29. 136
  30. 48
  31. 36
  32. 184
  33. 212
  34. 188
  35. 196
  36. 132
  37. 92
  38. 192
  39. 220
  40. 28

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