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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 130 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.46 × 4 =
  2. 2.39 × 4 =
  3. 3.54 × 4 =
  4. 4.38 × 4 =
  5. 5.23 × 4 =
  6. 6.48 × 4 =
  7. 7.6 × 4 =
  8. 8.20 × 4 =
  9. 9.30 × 4 =
  10. 10.36 × 4 =
  11. 11.17 × 4 =
  12. 12.40 × 4 =
  13. 13.27 × 4 =
  14. 14.41 × 4 =
  15. 15.15 × 4 =
  16. 16.53 × 4 =
  17. 17.52 × 4 =
  18. 18.7 × 4 =
  19. 19.9 × 4 =
  20. 20.24 × 4 =
  21. 21.58 × 4 =
  22. 22.12 × 4 =
  23. 23.37 × 4 =
  24. 24.49 × 4 =
  25. 25.59 × 4 =
  26. 26.34 × 4 =
  27. 27.18 × 4 =
  28. 28.14 × 4 =
  29. 29.60 × 4 =
  30. 30.44 × 4 =
  31. 31.29 × 4 =
  32. 32.32 × 4 =
  33. 33.19 × 4 =
  34. 34.42 × 4 =
  35. 35.8 × 4 =
  36. 36.26 × 4 =
  37. 37.11 × 4 =
  38. 38.22 × 4 =
  39. 39.31 × 4 =
  40. 40.13 × 4 =

Answer key

  1. 184
  2. 156
  3. 216
  4. 152
  5. 92
  6. 192
  7. 24
  8. 80
  9. 120
  10. 144
  11. 68
  12. 160
  13. 108
  14. 164
  15. 60
  16. 212
  17. 208
  18. 28
  19. 36
  20. 96
  21. 232
  22. 48
  23. 148
  24. 196
  25. 236
  26. 136
  27. 72
  28. 56
  29. 240
  30. 176
  31. 116
  32. 128
  33. 76
  34. 168
  35. 32
  36. 104
  37. 44
  38. 88
  39. 124
  40. 52

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