a, 200-15 .12 +196 :14 =200-180+14=34
b,4,6.63+25.0,53+4,6.37 +0.27 .25=4,6.(63+37)+25.( 0,53 +0,27)=4,6.100+25.0,8=460+20=480
a) \(200-15.12+196:14=200-180+14\) \(=34\)
b) \(4,6.63+25.0,53+4,6.37+0,27.25\) \(=4,6.63+4,6.37+25.0,53+0,27.25\)
\(=4,6.\left(63+37\right)+25.\left(0,53+0,27\right)\)
\(=4,6.100+0,8.25\)
\(=460+20=480\)