Ta có :
\(28.76-18.28+9.28\)
\(=28.\left(76-18+9\right)\)
\(=28.67\)
\(=1876\)
~ Ủng hộ nhé
= 28 . ( 76 - 18 + 9 )
= 28 . (58 + 9)
= 28 . 67
= 1876
\(\text{28 . 76 - 18 . 28 + 9 . 28}\)
\(=\text{28 .( 76 - 18 + 9 )}\)
\(=78\cdot67\)
\(=1876\)
\(28.76-18.28+9.28\)
\(=28.\left(76-18+9\right)\)
\(=28.67\)
\(=1876\)
hok tốt
28x76-18x28+9x28= 28 x (76-18+9)
= 28 x 67
= 1876
28 . 76 - 18 . 28 + 9 . 28
= 28 ( 76 - 18 + 9 )
= 28 ( 58 + 9 )
= 28 . 67
= 1876
\(28\cdot76-18\cdot28+9\cdot28\)
\(=28\cdot\left(76-18+9\right)\)
\(=28\cdot67\)
\(=1876\)
28 x 76 - 18 x 28 + 9 x 28
= 28 x ( 76 - 18 + 9 )
= 28 x 67
= 1876
28 x 76 - 18 x 28 + 9 x 28
= 28 x ( 76 - 18 + 9 )
= 28 x 67
= 1876.
