(13-135+49)-(13+49)
= 13-135 + 49 - 13-49
= ( 13-13) + ( 49-49) -135
= 0 -135
=-135
26.(24-11)-24.(26-11)
= 26.24 - 11.26 - 24.26 - 11.24
= 24.(26-26) -11(26-24)
= 0 - 11.2
=-22
\(\left(13-135+49\right)-\left(13+49\right)\))
\(=13-135+49-13-49\)
\(=\left(13-13\right)+\left(49-49\right)-135\)
\(=0-135=-135\)
\(26.\left(24-11\right)-24.\left(26-11\right)\)
\(=26.24-11.26-24.26-11.24\)
\(=24.\left(26-26\right)-11.\left(26-24\right)\)
\(=0-11.2=-22\)
