Question

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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Answer 1

Step-by-step 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