Question

13,4+12,3+11,2-10,4-11,5-12,6-0,4

Answer 1

=13,4-0,4+12,3-12,6+11,2-11,5-10,4

=13-0,3-0,3-10,4

=13-11

=2

Answer 2

\(13,4+12,3+11,2-10,4-11,5-12,6-0,4\)

\(=\left(13,4-10,4\right)-\left(12,6-12,3\right)-\left(11,5-11,2\right)-0,4\)

\(=3-0,3-0,3-0,4\)

\(=3-\left(0,3+0,3+0,4\right)\)

\(=3-1\)

\(=2\)