Question

Vă rog din suflet la matematica

Answer 1

Buna !
(0.2 - $\frac{1}{2}$ : 5) : 0.1 = 1 .
Bafta !

Answer 2

(0,2-1/2 :5):0,1=
=(2/10 -1/2 ×1/5 ) : 1/10=
=(2/10- 1/10) :1/10=
=1/10 :1/10=
=1/10 ×10/1=
=1×1 totul supra /1×1=
=1/1=
=1