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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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