6,75 x 125 - 0,675 x 120 - 6,75 x 13
= 6,75 x 125 - 6,75 x 12 - 6,75 x 13
= 6,75 x ( 125 - 12 - 13 )
= 6,75 x 100
= 675
6,75 x 125 - 0,675 x 120 - 6,75 x 13
= 6,75 x 125 - 0,675 x 10 x 12 - 6,75 x 13
= 6,75 x 125 - 6,75 x 12 - 6,75 x 13
= 6,75 x (125-12-13)
= 6,75 x (113 - 13)
= 6,75 x 100 = 675.
Đáp số : 675
6,75 x 125 - 0,675 x 120 - 6,75 x 13
= 6,75 x 125 - 6,75 x 12 - 6,75 x 13
= 6,75 x (125 - 12 - 13)
= 6,75 x 100
= 675
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