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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 321 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.50 × 4 =
  2. 2.52 × 4 =
  3. 3.12 × 4 =
  4. 4.7 × 4 =
  5. 5.31 × 4 =
  6. 6.15 × 4 =
  7. 7.14 × 4 =
  8. 8.59 × 4 =
  9. 9.10 × 4 =
  10. 10.22 × 4 =
  11. 11.47 × 4 =
  12. 12.13 × 4 =
  13. 13.8 × 4 =
  14. 14.56 × 4 =
  15. 15.44 × 4 =
  16. 16.17 × 4 =
  17. 17.16 × 4 =
  18. 18.18 × 4 =
  19. 19.57 × 4 =
  20. 20.43 × 4 =
  21. 21.37 × 4 =
  22. 22.21 × 4 =
  23. 23.33 × 4 =
  24. 24.41 × 4 =
  25. 25.36 × 4 =
  26. 26.28 × 4 =
  27. 27.20 × 4 =
  28. 28.29 × 4 =
  29. 29.45 × 4 =
  30. 30.11 × 4 =
  31. 31.30 × 4 =
  32. 32.32 × 4 =
  33. 33.26 × 4 =
  34. 34.6 × 4 =
  35. 35.34 × 4 =
  36. 36.38 × 4 =
  37. 37.55 × 4 =
  38. 38.60 × 4 =
  39. 39.48 × 4 =
  40. 40.27 × 4 =

Answer key

  1. 200
  2. 208
  3. 48
  4. 28
  5. 124
  6. 60
  7. 56
  8. 236
  9. 40
  10. 88
  11. 188
  12. 52
  13. 32
  14. 224
  15. 176
  16. 68
  17. 64
  18. 72
  19. 228
  20. 172
  21. 148
  22. 84
  23. 132
  24. 164
  25. 144
  26. 112
  27. 80
  28. 116
  29. 180
  30. 44
  31. 120
  32. 128
  33. 104
  34. 24
  35. 136
  36. 152
  37. 220
  38. 240
  39. 192
  40. 108

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