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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 71 · 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. 2.13 × 4 =
  3. 3.41 × 4 =
  4. 4.33 × 4 =
  5. 5.60 × 4 =
  6. 6.18 × 4 =
  7. 7.15 × 4 =
  8. 8.34 × 4 =
  9. 9.54 × 4 =
  10. 10.9 × 4 =
  11. 11.28 × 4 =
  12. 12.37 × 4 =
  13. 13.21 × 4 =
  14. 14.8 × 4 =
  15. 15.17 × 4 =
  16. 16.16 × 4 =
  17. 17.29 × 4 =
  18. 18.30 × 4 =
  19. 19.43 × 4 =
  20. 20.56 × 4 =
  21. 21.23 × 4 =
  22. 22.45 × 4 =
  23. 23.47 × 4 =
  24. 24.46 × 4 =
  25. 25.6 × 4 =
  26. 26.38 × 4 =
  27. 27.26 × 4 =
  28. 28.49 × 4 =
  29. 29.31 × 4 =
  30. 30.50 × 4 =
  31. 31.7 × 4 =
  32. 32.44 × 4 =
  33. 33.42 × 4 =
  34. 34.48 × 4 =
  35. 35.59 × 4 =
  36. 36.27 × 4 =
  37. 37.12 × 4 =
  38. 38.40 × 4 =
  39. 39.36 × 4 =
  40. 40.10 × 4 =

Answer key

  1. 80
  2. 52
  3. 164
  4. 132
  5. 240
  6. 72
  7. 60
  8. 136
  9. 216
  10. 36
  11. 112
  12. 148
  13. 84
  14. 32
  15. 68
  16. 64
  17. 116
  18. 120
  19. 172
  20. 224
  21. 92
  22. 180
  23. 188
  24. 184
  25. 24
  26. 152
  27. 104
  28. 196
  29. 124
  30. 200
  31. 28
  32. 176
  33. 168
  34. 192
  35. 236
  36. 108
  37. 48
  38. 160
  39. 144
  40. 40

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