=1003x27 + 27x3x477 + 27x6x94 -(11+70)
=1003x27+27x1431 + 27x564 - 81
=27 x (1003+1431+564) - 81
=27 x 2998 -81
=80946 - 81
=80865
. 1003 x 27 + 81 x 477 + 162 x 94 - 11 - 70
= 1003 x 27 + 27 x 1431 + 27 x 564 - 81
= 27 x ( 1003 + 1431 + 564 ) + 81
= 27 x 2998 + 81
= 80946 - 81
= 80865
K mk nha