← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 1 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.20 × 4 =
  2. 2.40 × 4 =
  3. 3.8 × 4 =
  4. 4.15 × 4 =
  5. 5.47 × 4 =
  6. 6.55 × 4 =
  7. 7.12 × 4 =
  8. 8.44 × 4 =
  9. 9.39 × 4 =
  10. 10.21 × 4 =
  11. 11.32 × 4 =
  12. 12.36 × 4 =
  13. 13.24 × 4 =
  14. 14.22 × 4 =
  15. 15.17 × 4 =
  16. 16.52 × 4 =
  17. 17.18 × 4 =
  18. 18.9 × 4 =
  19. 19.16 × 4 =
  20. 20.49 × 4 =
  21. 21.31 × 4 =
  22. 22.19 × 4 =
  23. 23.48 × 4 =
  24. 24.51 × 4 =
  25. 25.37 × 4 =
  26. 26.45 × 4 =
  27. 27.11 × 4 =
  28. 28.10 × 4 =
  29. 29.56 × 4 =
  30. 30.33 × 4 =
  31. 31.46 × 4 =
  32. 32.58 × 4 =
  33. 33.14 × 4 =
  34. 34.23 × 4 =
  35. 35.57 × 4 =
  36. 36.26 × 4 =
  37. 37.50 × 4 =
  38. 38.42 × 4 =
  39. 39.41 × 4 =
  40. 40.27 × 4 =

Answer key

  1. 80
  2. 160
  3. 32
  4. 60
  5. 188
  6. 220
  7. 48
  8. 176
  9. 156
  10. 84
  11. 128
  12. 144
  13. 96
  14. 88
  15. 68
  16. 208
  17. 72
  18. 36
  19. 64
  20. 196
  21. 124
  22. 76
  23. 192
  24. 204
  25. 148
  26. 180
  27. 44
  28. 40
  29. 224
  30. 132
  31. 184
  32. 232
  33. 56
  34. 92
  35. 228
  36. 104
  37. 200
  38. 168
  39. 164
  40. 108

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