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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 640 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.45 × 4 =
  2. 2.7 × 4 =
  3. 3.17 × 4 =
  4. 4.19 × 4 =
  5. 5.29 × 4 =
  6. 6.33 × 4 =
  7. 7.18 × 4 =
  8. 8.13 × 4 =
  9. 9.40 × 4 =
  10. 10.16 × 4 =
  11. 11.26 × 4 =
  12. 12.15 × 4 =
  13. 13.41 × 4 =
  14. 14.21 × 4 =
  15. 15.20 × 4 =
  16. 16.53 × 4 =
  17. 17.43 × 4 =
  18. 18.27 × 4 =
  19. 19.49 × 4 =
  20. 20.47 × 4 =
  21. 21.57 × 4 =
  22. 22.51 × 4 =
  23. 23.58 × 4 =
  24. 24.38 × 4 =
  25. 25.60 × 4 =
  26. 26.14 × 4 =
  27. 27.8 × 4 =
  28. 28.35 × 4 =
  29. 29.34 × 4 =
  30. 30.59 × 4 =
  31. 31.12 × 4 =
  32. 32.28 × 4 =
  33. 33.31 × 4 =
  34. 34.32 × 4 =
  35. 35.44 × 4 =
  36. 36.52 × 4 =
  37. 37.9 × 4 =
  38. 38.10 × 4 =
  39. 39.54 × 4 =
  40. 40.55 × 4 =

Answer key

  1. 180
  2. 28
  3. 68
  4. 76
  5. 116
  6. 132
  7. 72
  8. 52
  9. 160
  10. 64
  11. 104
  12. 60
  13. 164
  14. 84
  15. 80
  16. 212
  17. 172
  18. 108
  19. 196
  20. 188
  21. 228
  22. 204
  23. 232
  24. 152
  25. 240
  26. 56
  27. 32
  28. 140
  29. 136
  30. 236
  31. 48
  32. 112
  33. 124
  34. 128
  35. 176
  36. 208
  37. 36
  38. 40
  39. 216
  40. 220

Free maths tricks lessons, practice and worksheets at talentjr.in/maths-tricks