48.13 + 61 . 16
= 48 . ( 10 + 3 ) + ( 60 + 1 ) . 16
= [ 48 . 10 + 48.3 ] + [ 60 . 16 + 1 . 16 ]
= 624 + 976
= 1600
1, \(48.13+61.16=16.3.13+61.16=16.\left(39+61\right)=16.100=1600\)
\(2,5.6.32+60.15.2+3.16.5=5.6.2.16+60.15.2+3.5.4.4=60.16+60.30+60.4=60.\left(16+30+4\right)=60.50=3000\)