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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 123 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.40 × 4 =
  2. 2.58 × 4 =
  3. 3.16 × 4 =
  4. 4.7 × 4 =
  5. 5.44 × 4 =
  6. 6.19 × 4 =
  7. 7.60 × 4 =
  8. 8.43 × 4 =
  9. 9.8 × 4 =
  10. 10.48 × 4 =
  11. 11.25 × 4 =
  12. 12.51 × 4 =
  13. 13.29 × 4 =
  14. 14.47 × 4 =
  15. 15.24 × 4 =
  16. 16.45 × 4 =
  17. 17.9 × 4 =
  18. 18.39 × 4 =
  19. 19.42 × 4 =
  20. 20.33 × 4 =
  21. 21.6 × 4 =
  22. 22.12 × 4 =
  23. 23.46 × 4 =
  24. 24.53 × 4 =
  25. 25.55 × 4 =
  26. 26.52 × 4 =
  27. 27.26 × 4 =
  28. 28.35 × 4 =
  29. 29.32 × 4 =
  30. 30.23 × 4 =
  31. 31.21 × 4 =
  32. 32.18 × 4 =
  33. 33.50 × 4 =
  34. 34.11 × 4 =
  35. 35.59 × 4 =
  36. 36.30 × 4 =
  37. 37.49 × 4 =
  38. 38.14 × 4 =
  39. 39.18 × 4 =
  40. 40.37 × 4 =

Answer key

  1. 160
  2. 232
  3. 64
  4. 28
  5. 176
  6. 76
  7. 240
  8. 172
  9. 32
  10. 192
  11. 100
  12. 204
  13. 116
  14. 188
  15. 96
  16. 180
  17. 36
  18. 156
  19. 168
  20. 132
  21. 24
  22. 48
  23. 184
  24. 212
  25. 220
  26. 208
  27. 104
  28. 140
  29. 128
  30. 92
  31. 84
  32. 72
  33. 200
  34. 44
  35. 236
  36. 120
  37. 196
  38. 56
  39. 72
  40. 148

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