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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 51 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.43 × 4 =
  2. 2.34 × 4 =
  3. 3.51 × 4 =
  4. 4.21 × 4 =
  5. 5.18 × 4 =
  6. 6.36 × 4 =
  7. 7.60 × 4 =
  8. 8.22 × 4 =
  9. 9.26 × 4 =
  10. 10.19 × 4 =
  11. 11.15 × 4 =
  12. 12.50 × 4 =
  13. 13.35 × 4 =
  14. 14.38 × 4 =
  15. 15.49 × 4 =
  16. 16.44 × 4 =
  17. 17.48 × 4 =
  18. 18.58 × 4 =
  19. 19.14 × 4 =
  20. 20.31 × 4 =
  21. 21.33 × 4 =
  22. 22.54 × 4 =
  23. 23.53 × 4 =
  24. 24.56 × 4 =
  25. 25.8 × 4 =
  26. 26.17 × 4 =
  27. 27.9 × 4 =
  28. 28.7 × 4 =
  29. 29.42 × 4 =
  30. 30.40 × 4 =
  31. 31.25 × 4 =
  32. 32.37 × 4 =
  33. 33.16 × 4 =
  34. 34.52 × 4 =
  35. 35.46 × 4 =
  36. 36.23 × 4 =
  37. 37.30 × 4 =
  38. 38.28 × 4 =
  39. 39.47 × 4 =
  40. 40.32 × 4 =

Answer key

  1. 172
  2. 136
  3. 204
  4. 84
  5. 72
  6. 144
  7. 240
  8. 88
  9. 104
  10. 76
  11. 60
  12. 200
  13. 140
  14. 152
  15. 196
  16. 176
  17. 192
  18. 232
  19. 56
  20. 124
  21. 132
  22. 216
  23. 212
  24. 224
  25. 32
  26. 68
  27. 36
  28. 28
  29. 168
  30. 160
  31. 100
  32. 148
  33. 64
  34. 208
  35. 184
  36. 92
  37. 120
  38. 112
  39. 188
  40. 128

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