a, \(18:3-3.\left(51:17\right)=6-3.3\)
\(=6-9=-3\)
\(b,25-200:50.4=25-4.4\)
\(=25-16=9\)
\(c,77.25+65.77+77.10=77.\left(25+65+10\right)\)
\(=77.100=7700\)
\(d,36.72+36.28-28.100=36.\left(72+28\right)-28.100\)
\(=36.100-28.100=\left(36-28\right).100\)
\(=8.100=800\)
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A.18:3-3.(51:17)
=18:3-3.3
=6-1=5
b.
b 25-200:50.4
=25-2.4
=25-8
=17
c 77.25+65.77+77.10
=77.(25+65+10)
=77.100
=7700
d 36.72+36.28-28.100
=36.72+36.(28-28).100
=36.72+36.0.100
=36.72.0.100
=0
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