Question

2x31x12+4x6x42+8x27x3

Answer 1

=24*31+24*42+24*27

=24(31+42+27)

=24*100

=2400

Answer 2

\(2\times31\times12+4\times6\times42+8\times27\times3\)

\(=\left(2\times12\right)\times31+\left(4\times6\right)\times42+\left(8\times3\right)\times27\)

\(=24\times31+24\times42+24\times27\)

\(=24\times\left(31+42+27\right)\)

\(=24\times100\)

\(=2400\)