2*31*12+4*6*41+8*27*3
= 24 *31 + 24 *41 + 24 * 27
= 24*( 31+41+27)
=24 * 99
=2376
= 24:12x31x12+(4x6)x42+(8x3).27
= 24:12x31x12+24x42+24x27
= 24x(31+42+27):12x12
= 24x100
=2400
quá chuẩn !!!
2*31*12+4*6*41+8*27*3
=2*12*31+4*6*41+8*3*27
=24*31+24*41+24*27
=24*(31+41+27)
=24*(100-1)
=24*100-24*1
=2400-24
=2376