a: =5,6(4,65+4,35)=5,6*9=50,4
b: \(=\dfrac{\left(18.5+14.8+12.7\right)}{4.6}=\dfrac{46}{4.6}=10\)
c: \(=\dfrac{100-79.3}{9}=\dfrac{20.7}{9}=2.3\)
d: \(=32.97\left(45.34-34.34-1\right)=10\cdot32.97=329.7\)
e: \(=25.4\cdot\left(7.9+2.1\right)\cdot\left(86\cdot11-860-86\right)\)
=0
f: =49,63:10=4,963