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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 174 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.9 × 4 =
  2. 2.16 × 4 =
  3. 3.42 × 4 =
  4. 4.11 × 4 =
  5. 5.48 × 4 =
  6. 6.10 × 4 =
  7. 7.60 × 4 =
  8. 8.13 × 4 =
  9. 9.19 × 4 =
  10. 10.43 × 4 =
  11. 11.57 × 4 =
  12. 12.45 × 4 =
  13. 13.32 × 4 =
  14. 14.37 × 4 =
  15. 15.39 × 4 =
  16. 16.41 × 4 =
  17. 17.55 × 4 =
  18. 18.34 × 4 =
  19. 19.46 × 4 =
  20. 20.58 × 4 =
  21. 21.18 × 4 =
  22. 22.26 × 4 =
  23. 23.28 × 4 =
  24. 24.17 × 4 =
  25. 25.47 × 4 =
  26. 26.29 × 4 =
  27. 27.59 × 4 =
  28. 28.56 × 4 =
  29. 29.49 × 4 =
  30. 30.15 × 4 =
  31. 31.23 × 4 =
  32. 32.21 × 4 =
  33. 33.8 × 4 =
  34. 34.54 × 4 =
  35. 35.30 × 4 =
  36. 36.36 × 4 =
  37. 37.20 × 4 =
  38. 38.40 × 4 =
  39. 39.35 × 4 =
  40. 40.33 × 4 =

Answer key

  1. 36
  2. 64
  3. 168
  4. 44
  5. 192
  6. 40
  7. 240
  8. 52
  9. 76
  10. 172
  11. 228
  12. 180
  13. 128
  14. 148
  15. 156
  16. 164
  17. 220
  18. 136
  19. 184
  20. 232
  21. 72
  22. 104
  23. 112
  24. 68
  25. 188
  26. 116
  27. 236
  28. 224
  29. 196
  30. 60
  31. 92
  32. 84
  33. 32
  34. 216
  35. 120
  36. 144
  37. 80
  38. 160
  39. 140
  40. 132

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