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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 661 · 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. 2.16 × 4 =
  3. 3.48 × 4 =
  4. 4.21 × 4 =
  5. 5.15 × 4 =
  6. 6.41 × 4 =
  7. 7.7 × 4 =
  8. 8.40 × 4 =
  9. 9.30 × 4 =
  10. 10.39 × 4 =
  11. 11.32 × 4 =
  12. 12.52 × 4 =
  13. 13.33 × 4 =
  14. 14.46 × 4 =
  15. 15.34 × 4 =
  16. 16.57 × 4 =
  17. 17.50 × 4 =
  18. 18.45 × 4 =
  19. 19.59 × 4 =
  20. 20.29 × 4 =
  21. 21.38 × 4 =
  22. 22.17 × 4 =
  23. 23.36 × 4 =
  24. 24.27 × 4 =
  25. 25.37 × 4 =
  26. 26.43 × 4 =
  27. 27.53 × 4 =
  28. 28.35 × 4 =
  29. 29.26 × 4 =
  30. 30.55 × 4 =
  31. 31.60 × 4 =
  32. 32.14 × 4 =
  33. 33.8 × 4 =
  34. 34.18 × 4 =
  35. 35.22 × 4 =
  36. 36.9 × 4 =
  37. 37.23 × 4 =
  38. 38.54 × 4 =
  39. 39.58 × 4 =
  40. 40.11 × 4 =

Answer key

  1. 76
  2. 64
  3. 192
  4. 84
  5. 60
  6. 164
  7. 28
  8. 160
  9. 120
  10. 156
  11. 128
  12. 208
  13. 132
  14. 184
  15. 136
  16. 228
  17. 200
  18. 180
  19. 236
  20. 116
  21. 152
  22. 68
  23. 144
  24. 108
  25. 148
  26. 172
  27. 212
  28. 140
  29. 104
  30. 220
  31. 240
  32. 56
  33. 32
  34. 72
  35. 88
  36. 36
  37. 92
  38. 216
  39. 232
  40. 44

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