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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 820 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.13 × 4 =
  2. 2.8 × 4 =
  3. 3.43 × 4 =
  4. 4.9 × 4 =
  5. 5.29 × 4 =
  6. 6.20 × 4 =
  7. 7.22 × 4 =
  8. 8.51 × 4 =
  9. 9.34 × 4 =
  10. 10.15 × 4 =
  11. 11.37 × 4 =
  12. 12.39 × 4 =
  13. 13.44 × 4 =
  14. 14.53 × 4 =
  15. 15.46 × 4 =
  16. 16.54 × 4 =
  17. 17.23 × 4 =
  18. 18.16 × 4 =
  19. 19.41 × 4 =
  20. 20.36 × 4 =
  21. 21.42 × 4 =
  22. 22.55 × 4 =
  23. 23.7 × 4 =
  24. 24.47 × 4 =
  25. 25.12 × 4 =
  26. 26.57 × 4 =
  27. 27.21 × 4 =
  28. 28.25 × 4 =
  29. 29.14 × 4 =
  30. 30.60 × 4 =
  31. 31.26 × 4 =
  32. 32.48 × 4 =
  33. 33.18 × 4 =
  34. 34.35 × 4 =
  35. 35.40 × 4 =
  36. 36.28 × 4 =
  37. 37.56 × 4 =
  38. 38.58 × 4 =
  39. 39.52 × 4 =
  40. 40.31 × 4 =

Answer key

  1. 52
  2. 32
  3. 172
  4. 36
  5. 116
  6. 80
  7. 88
  8. 204
  9. 136
  10. 60
  11. 148
  12. 156
  13. 176
  14. 212
  15. 184
  16. 216
  17. 92
  18. 64
  19. 164
  20. 144
  21. 168
  22. 220
  23. 28
  24. 188
  25. 48
  26. 228
  27. 84
  28. 100
  29. 56
  30. 240
  31. 104
  32. 192
  33. 72
  34. 140
  35. 160
  36. 112
  37. 224
  38. 232
  39. 208
  40. 124

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