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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 490 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.8 × 4 =
  2. 2.47 × 4 =
  3. 3.48 × 4 =
  4. 4.25 × 4 =
  5. 5.53 × 4 =
  6. 6.32 × 4 =
  7. 7.49 × 4 =
  8. 8.28 × 4 =
  9. 9.50 × 4 =
  10. 10.31 × 4 =
  11. 11.6 × 4 =
  12. 12.52 × 4 =
  13. 13.19 × 4 =
  14. 14.26 × 4 =
  15. 15.51 × 4 =
  16. 16.14 × 4 =
  17. 17.27 × 4 =
  18. 18.41 × 4 =
  19. 19.38 × 4 =
  20. 20.12 × 4 =
  21. 21.17 × 4 =
  22. 22.20 × 4 =
  23. 23.40 × 4 =
  24. 24.36 × 4 =
  25. 25.45 × 4 =
  26. 26.33 × 4 =
  27. 27.30 × 4 =
  28. 28.15 × 4 =
  29. 29.9 × 4 =
  30. 30.22 × 4 =
  31. 31.55 × 4 =
  32. 32.59 × 4 =
  33. 33.56 × 4 =
  34. 34.18 × 4 =
  35. 35.34 × 4 =
  36. 36.57 × 4 =
  37. 37.46 × 4 =
  38. 38.16 × 4 =
  39. 39.58 × 4 =
  40. 40.37 × 4 =

Answer key

  1. 32
  2. 188
  3. 192
  4. 100
  5. 212
  6. 128
  7. 196
  8. 112
  9. 200
  10. 124
  11. 24
  12. 208
  13. 76
  14. 104
  15. 204
  16. 56
  17. 108
  18. 164
  19. 152
  20. 48
  21. 68
  22. 80
  23. 160
  24. 144
  25. 180
  26. 132
  27. 120
  28. 60
  29. 36
  30. 88
  31. 220
  32. 236
  33. 224
  34. 72
  35. 136
  36. 228
  37. 184
  38. 64
  39. 232
  40. 148

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