Question

a) 2,5 – {-(+8,42) - (-3,2+(-3+0,36)]} =

Answer 1

2,5-{-(+8,42)-(-3,2+)(-3+0,36)]}=

2,5-{-(+8,42-(-3,2+)-2,4}

2,5-{-5,22+(-2,4)}

2,5{-7,62)

10,12