2.4.6 + 3.5.8 + 2.3.12
= 2 . 24 + 24 . 5 + 24 . 3
= 24 . ( 2 + 5 + 3 )
= 24 . 10
= 240
\(vt=8.4+3.5.8+6.12=8\left(4+15+1-1\right)+6.12.\)
\(=160-8+6.12\)
\(160-4\left(2+6.3\right)=160-4\left(20\right)=160-80=80\)
2.4.6 + 3.5.8 + 2.3.12
= 2.24 + 24.5 + 24.3
= 24.(2+5+3)
= 24.10
= 240