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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 334 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.36 × 4 =
  2. 2.56 × 4 =
  3. 3.15 × 4 =
  4. 4.47 × 4 =
  5. 5.14 × 4 =
  6. 6.50 × 4 =
  7. 7.40 × 4 =
  8. 8.44 × 4 =
  9. 9.45 × 4 =
  10. 10.28 × 4 =
  11. 11.21 × 4 =
  12. 12.37 × 4 =
  13. 13.10 × 4 =
  14. 14.48 × 4 =
  15. 15.42 × 4 =
  16. 16.32 × 4 =
  17. 17.46 × 4 =
  18. 18.55 × 4 =
  19. 19.49 × 4 =
  20. 20.60 × 4 =
  21. 21.30 × 4 =
  22. 22.58 × 4 =
  23. 23.7 × 4 =
  24. 24.13 × 4 =
  25. 25.52 × 4 =
  26. 26.43 × 4 =
  27. 27.18 × 4 =
  28. 28.39 × 4 =
  29. 29.17 × 4 =
  30. 30.57 × 4 =
  31. 31.38 × 4 =
  32. 32.19 × 4 =
  33. 33.23 × 4 =
  34. 34.54 × 4 =
  35. 35.24 × 4 =
  36. 36.27 × 4 =
  37. 37.53 × 4 =
  38. 38.9 × 4 =
  39. 39.6 × 4 =
  40. 40.20 × 4 =

Answer key

  1. 144
  2. 224
  3. 60
  4. 188
  5. 56
  6. 200
  7. 160
  8. 176
  9. 180
  10. 112
  11. 84
  12. 148
  13. 40
  14. 192
  15. 168
  16. 128
  17. 184
  18. 220
  19. 196
  20. 240
  21. 120
  22. 232
  23. 28
  24. 52
  25. 208
  26. 172
  27. 72
  28. 156
  29. 68
  30. 228
  31. 152
  32. 76
  33. 92
  34. 216
  35. 96
  36. 108
  37. 212
  38. 36
  39. 24
  40. 80

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