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Fill in the blanks to find the product of 684 and 7.
684 × 7 = (600 +
+ 4) × 7
= (600 ×
) + (80 × 7) + (4 × 7)
= 4,200 +
+ 28
=
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Respuesta :

sqdancefan

Explanation:

This is an application of the distributive property. (It is also a variation on the way you were taught to do multiplication by hand.)

  684 × 7 = (600 +80 +4) × 7

  = (600 × 7) +(80 × 7) + (4 × 7)

  = 4,200 + 560 + 28

  = 4788

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