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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 93 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.37 × 4 =
  2. 2.44 × 4 =
  3. 3.9 × 4 =
  4. 4.50 × 4 =
  5. 5.38 × 4 =
  6. 6.12 × 4 =
  7. 7.13 × 4 =
  8. 8.35 × 4 =
  9. 9.60 × 4 =
  10. 10.23 × 4 =
  11. 11.34 × 4 =
  12. 12.52 × 4 =
  13. 13.18 × 4 =
  14. 14.11 × 4 =
  15. 15.28 × 4 =
  16. 16.14 × 4 =
  17. 17.42 × 4 =
  18. 18.53 × 4 =
  19. 19.32 × 4 =
  20. 20.40 × 4 =
  21. 21.30 × 4 =
  22. 22.47 × 4 =
  23. 23.7 × 4 =
  24. 24.45 × 4 =
  25. 25.57 × 4 =
  26. 26.54 × 4 =
  27. 27.33 × 4 =
  28. 28.41 × 4 =
  29. 29.46 × 4 =
  30. 30.21 × 4 =
  31. 31.20 × 4 =
  32. 32.6 × 4 =
  33. 33.17 × 4 =
  34. 34.49 × 4 =
  35. 35.39 × 4 =
  36. 36.51 × 4 =
  37. 37.8 × 4 =
  38. 38.55 × 4 =
  39. 39.27 × 4 =
  40. 40.31 × 4 =

Answer key

  1. 148
  2. 176
  3. 36
  4. 200
  5. 152
  6. 48
  7. 52
  8. 140
  9. 240
  10. 92
  11. 136
  12. 208
  13. 72
  14. 44
  15. 112
  16. 56
  17. 168
  18. 212
  19. 128
  20. 160
  21. 120
  22. 188
  23. 28
  24. 180
  25. 228
  26. 216
  27. 132
  28. 164
  29. 184
  30. 84
  31. 80
  32. 24
  33. 68
  34. 196
  35. 156
  36. 204
  37. 32
  38. 220
  39. 108
  40. 124

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