← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 197 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.7 × 4 =
  2. 2.12 × 4 =
  3. 3.27 × 4 =
  4. 4.24 × 4 =
  5. 5.50 × 4 =
  6. 6.55 × 4 =
  7. 7.11 × 4 =
  8. 8.26 × 4 =
  9. 9.20 × 4 =
  10. 10.51 × 4 =
  11. 11.10 × 4 =
  12. 12.6 × 4 =
  13. 13.35 × 4 =
  14. 14.37 × 4 =
  15. 15.42 × 4 =
  16. 16.16 × 4 =
  17. 17.14 × 4 =
  18. 18.40 × 4 =
  19. 19.41 × 4 =
  20. 20.31 × 4 =
  21. 21.49 × 4 =
  22. 22.18 × 4 =
  23. 23.52 × 4 =
  24. 24.25 × 4 =
  25. 25.60 × 4 =
  26. 26.58 × 4 =
  27. 27.34 × 4 =
  28. 28.45 × 4 =
  29. 29.43 × 4 =
  30. 30.48 × 4 =
  31. 31.13 × 4 =
  32. 32.59 × 4 =
  33. 33.9 × 4 =
  34. 34.19 × 4 =
  35. 35.15 × 4 =
  36. 36.38 × 4 =
  37. 37.57 × 4 =
  38. 38.29 × 4 =
  39. 39.46 × 4 =
  40. 40.30 × 4 =

Answer key

  1. 28
  2. 48
  3. 108
  4. 96
  5. 200
  6. 220
  7. 44
  8. 104
  9. 80
  10. 204
  11. 40
  12. 24
  13. 140
  14. 148
  15. 168
  16. 64
  17. 56
  18. 160
  19. 164
  20. 124
  21. 196
  22. 72
  23. 208
  24. 100
  25. 240
  26. 232
  27. 136
  28. 180
  29. 172
  30. 192
  31. 52
  32. 236
  33. 36
  34. 76
  35. 60
  36. 152
  37. 228
  38. 116
  39. 184
  40. 120

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