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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 195 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.21 × 4 =
  2. 2.11 × 4 =
  3. 3.41 × 4 =
  4. 4.25 × 4 =
  5. 5.45 × 4 =
  6. 6.12 × 4 =
  7. 7.37 × 4 =
  8. 8.28 × 4 =
  9. 9.59 × 4 =
  10. 10.44 × 4 =
  11. 11.52 × 4 =
  12. 12.57 × 4 =
  13. 13.19 × 4 =
  14. 14.42 × 4 =
  15. 15.46 × 4 =
  16. 16.58 × 4 =
  17. 17.35 × 4 =
  18. 18.51 × 4 =
  19. 19.55 × 4 =
  20. 20.31 × 4 =
  21. 21.40 × 4 =
  22. 22.36 × 4 =
  23. 23.15 × 4 =
  24. 24.26 × 4 =
  25. 25.53 × 4 =
  26. 26.43 × 4 =
  27. 27.7 × 4 =
  28. 28.20 × 4 =
  29. 29.13 × 4 =
  30. 30.33 × 4 =
  31. 31.16 × 4 =
  32. 32.24 × 4 =
  33. 33.50 × 4 =
  34. 34.56 × 4 =
  35. 35.34 × 4 =
  36. 36.54 × 4 =
  37. 37.27 × 4 =
  38. 38.18 × 4 =
  39. 39.8 × 4 =
  40. 40.10 × 4 =

Answer key

  1. 84
  2. 44
  3. 164
  4. 100
  5. 180
  6. 48
  7. 148
  8. 112
  9. 236
  10. 176
  11. 208
  12. 228
  13. 76
  14. 168
  15. 184
  16. 232
  17. 140
  18. 204
  19. 220
  20. 124
  21. 160
  22. 144
  23. 60
  24. 104
  25. 212
  26. 172
  27. 28
  28. 80
  29. 52
  30. 132
  31. 64
  32. 96
  33. 200
  34. 224
  35. 136
  36. 216
  37. 108
  38. 72
  39. 32
  40. 40

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