\(13.57+87.57=57\left(87+13\right)=57.100=5700\)
\(13.57+87.57\)
\(=\left(13+87\right).57\)
\(=100.57\)
\(=5700\)
13.57 + 87.57
= ( 13 + 87 ). 57
= 100 . 57
= 5700
13 . 57 + 87 . 57
= 57 . ( 13 + 87 )
= 57 . 100
= 5 700
13.57 + 87.57
= 57 . ( 13 + 87 )
= 57 . 100
= 5700
13.57 + 87.57 = ( 13 + 87 ) . 57
= 100.57
= 5700
\(13.57+87.57\)
\(=57.\left(13+87\right)\)
\(=57.100\)
\(=5700\)
\(13.57+87.57\)
\(=57.\left(13+87\right)\)
\(=57.100\)
\(=5700\)