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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 433 · 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. 2.57 × 4 =
  3. 3.16 × 4 =
  4. 4.18 × 4 =
  5. 5.56 × 4 =
  6. 6.48 × 4 =
  7. 7.39 × 4 =
  8. 8.23 × 4 =
  9. 9.53 × 4 =
  10. 10.11 × 4 =
  11. 11.19 × 4 =
  12. 12.49 × 4 =
  13. 13.43 × 4 =
  14. 14.41 × 4 =
  15. 15.60 × 4 =
  16. 16.42 × 4 =
  17. 17.13 × 4 =
  18. 18.32 × 4 =
  19. 19.38 × 4 =
  20. 20.29 × 4 =
  21. 21.24 × 4 =
  22. 22.35 × 4 =
  23. 23.6 × 4 =
  24. 24.25 × 4 =
  25. 25.20 × 4 =
  26. 26.58 × 4 =
  27. 27.46 × 4 =
  28. 28.47 × 4 =
  29. 29.55 × 4 =
  30. 30.9 × 4 =
  31. 31.27 × 4 =
  32. 32.54 × 4 =
  33. 33.12 × 4 =
  34. 34.51 × 4 =
  35. 35.10 × 4 =
  36. 36.14 × 4 =
  37. 37.50 × 4 =
  38. 38.30 × 4 =
  39. 39.8 × 4 =
  40. 40.45 × 4 =

Answer key

  1. 148
  2. 228
  3. 64
  4. 72
  5. 224
  6. 192
  7. 156
  8. 92
  9. 212
  10. 44
  11. 76
  12. 196
  13. 172
  14. 164
  15. 240
  16. 168
  17. 52
  18. 128
  19. 152
  20. 116
  21. 96
  22. 140
  23. 24
  24. 100
  25. 80
  26. 232
  27. 184
  28. 188
  29. 220
  30. 36
  31. 108
  32. 216
  33. 48
  34. 204
  35. 40
  36. 56
  37. 200
  38. 120
  39. 32
  40. 180

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