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Multiply by 4 Worksheet

Maths tricks trick 3: Times 4: double, double · Set 924 · 40 questions
TalentJR

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

NameDateTime takenScore ___ / 40
  1. 1.51 × 4 =
  2. 2.45 × 4 =
  3. 3.15 × 4 =
  4. 4.7 × 4 =
  5. 5.14 × 4 =
  6. 6.37 × 4 =
  7. 7.20 × 4 =
  8. 8.18 × 4 =
  9. 9.44 × 4 =
  10. 10.49 × 4 =
  11. 11.16 × 4 =
  12. 12.32 × 4 =
  13. 13.56 × 4 =
  14. 14.12 × 4 =
  15. 15.30 × 4 =
  16. 16.31 × 4 =
  17. 17.50 × 4 =
  18. 18.42 × 4 =
  19. 19.43 × 4 =
  20. 20.8 × 4 =
  21. 21.46 × 4 =
  22. 22.27 × 4 =
  23. 23.21 × 4 =
  24. 24.22 × 4 =
  25. 25.55 × 4 =
  26. 26.35 × 4 =
  27. 27.34 × 4 =
  28. 28.23 × 4 =
  29. 29.40 × 4 =
  30. 30.48 × 4 =
  31. 31.19 × 4 =
  32. 32.57 × 4 =
  33. 33.17 × 4 =
  34. 34.25 × 4 =
  35. 35.47 × 4 =
  36. 36.13 × 4 =
  37. 37.58 × 4 =
  38. 38.33 × 4 =
  39. 39.11 × 4 =
  40. 40.60 × 4 =

Answer key

  1. 204
  2. 180
  3. 60
  4. 28
  5. 56
  6. 148
  7. 80
  8. 72
  9. 176
  10. 196
  11. 64
  12. 128
  13. 224
  14. 48
  15. 120
  16. 124
  17. 200
  18. 168
  19. 172
  20. 32
  21. 184
  22. 108
  23. 84
  24. 88
  25. 220
  26. 140
  27. 136
  28. 92
  29. 160
  30. 192
  31. 76
  32. 228
  33. 68
  34. 100
  35. 188
  36. 52
  37. 232
  38. 132
  39. 44
  40. 240

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