Ex.1
a)6,24.
b)28,82.
c)135,73.
d)7,36.
e)33,65.
f)3,31.
g)3,25.
h)12,856.
i)24,124.
Ex.3
1,7kg.+2,75kg.+1,5kg.+1kg.=6,95kg.(cantaresc in total)
Raspuns:Toate cumparaturile cantaresc 6,95kg.
Ex.4
12,5+13,8<28,0,65
Ex.5
120,5
Ex.6
26,7
Ex.7
a)x-2,7=12,3
x=12,3+2,7
x=15,0
Rs: S={15,0}
b)x+13,9=45,123
x=45,123-13,9
x=31,223
Rs: S={31,223}
c)12-x=6,25
x=12-6,25
x=6,75
Rs: S={6,75}
d)x+2,25-0,5=35,45
x=35,45-0,5-2,25
x=32,7
Rs: S={32,7}
