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Multiply by 4 and 8 Worksheet

Speed calculation lesson 6: Doubling sprints: × 4 and × 8 · Set 952 · 40 questions
TalentJR

The fast method (Double up): × 4: double, then double again. × 8: double three times. To double a big number, double the tens and the ones separately and add: double 37 = 60 + 14 = 74.

NameDateTime takenScore ___ / 40
  1. 1.26 × 4 =
  2. 2.27 × 8 =
  3. 3.70 × 8 =
  4. 4.39 × 4 =
  5. 5.57 × 8 =
  6. 6.66 × 8 =
  7. 7.142 × 4 =
  8. 8.22 × 8 =
  9. 9.118 × 4 =
  10. 10.21 × 8 =
  11. 11.33 × 8 =
  12. 12.57 × 8 =
  13. 13.120 × 4 =
  14. 14.18 × 8 =
  15. 15.158 × 4 =
  16. 16.84 × 4 =
  17. 17.29 × 4 =
  18. 18.139 × 4 =
  19. 19.107 × 4 =
  20. 20.122 × 4 =
  21. 21.18 × 8 =
  22. 22.25 × 4 =
  23. 23.91 × 4 =
  24. 24.101 × 4 =
  25. 25.58 × 4 =
  26. 26.62 × 8 =
  27. 27.16 × 4 =
  28. 28.54 × 8 =
  29. 29.68 × 8 =
  30. 30.139 × 4 =
  31. 31.58 × 8 =
  32. 32.63 × 8 =
  33. 33.55 × 8 =
  34. 34.41 × 8 =
  35. 35.51 × 8 =
  36. 36.67 × 8 =
  37. 37.19 × 8 =
  38. 38.74 × 8 =
  39. 39.42 × 8 =
  40. 40.109 × 4 =

Answer key

  1. 104
  2. 216
  3. 560
  4. 156
  5. 456
  6. 528
  7. 568
  8. 176
  9. 472
  10. 168
  11. 264
  12. 456
  13. 480
  14. 144
  15. 632
  16. 336
  17. 116
  18. 556
  19. 428
  20. 488
  21. 144
  22. 100
  23. 364
  24. 404
  25. 232
  26. 496
  27. 64
  28. 432
  29. 544
  30. 556
  31. 464
  32. 504
  33. 440
  34. 328
  35. 408
  36. 536
  37. 152
  38. 592
  39. 336
  40. 436

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