← Times 4: double, double lesson New set →

Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 523 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.44 × 4 =
  2. 2.41 × 4 =
  3. 3.12 × 4 =
  4. 4.26 × 4 =
  5. 5.20 × 4 =
  6. 6.49 × 4 =
  7. 7.21 × 4 =
  8. 8.33 × 4 =
  9. 9.53 × 4 =
  10. 10.55 × 4 =
  11. 11.47 × 4 =
  12. 12.7 × 4 =
  13. 13.32 × 4 =
  14. 14.37 × 4 =
  15. 15.6 × 4 =
  16. 16.36 × 4 =
  17. 17.25 × 4 =
  18. 18.39 × 4 =
  19. 19.34 × 4 =
  20. 20.9 × 4 =
  21. 21.57 × 4 =
  22. 22.35 × 4 =
  23. 23.30 × 4 =
  24. 24.46 × 4 =
  25. 25.54 × 4 =
  26. 26.8 × 4 =
  27. 27.14 × 4 =
  28. 28.42 × 4 =
  29. 29.43 × 4 =
  30. 30.40 × 4 =
  31. 31.56 × 4 =
  32. 32.13 × 4 =
  33. 33.19 × 4 =
  34. 34.60 × 4 =
  35. 35.16 × 4 =
  36. 36.18 × 4 =
  37. 37.17 × 4 =
  38. 38.38 × 4 =
  39. 39.29 × 4 =
  40. 40.59 × 4 =

Answer key

  1. 176
  2. 164
  3. 48
  4. 104
  5. 80
  6. 196
  7. 84
  8. 132
  9. 212
  10. 220
  11. 188
  12. 28
  13. 128
  14. 148
  15. 24
  16. 144
  17. 100
  18. 156
  19. 136
  20. 36
  21. 228
  22. 140
  23. 120
  24. 184
  25. 216
  26. 32
  27. 56
  28. 168
  29. 172
  30. 160
  31. 224
  32. 52
  33. 76
  34. 240
  35. 64
  36. 72
  37. 68
  38. 152
  39. 116
  40. 236

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